= LPAIR Analysis =

[[PageOutline]]

== Introduction ==

This investigation is meant to study the parton distribution functions (`PDF`) being used in the [[http://www.desy.de/~heramc/programs/lpair/lpair.pdf|LPAIR Monte Carlo generator]] w.r.t. the inelastic collision when the incoming proton breaks up into a hadronic final state. This analysis was motivated by the observation of a deficit on the number of events in the transverse momentum (p,,T,,) distributions of dimuons from data when compated to the predictions from `LPAIR` (Figure 6 in [[http://arxiv.org/abs/arXiv:1305.5596|CMS-FSQ-12-010]]). A possible reason for such disagreement may be related to the PDF being employed by `LPAIR` to compute the contribution of proton dissociation. 

There are currently two versions of this Monte Carlo generator (which can be found [[http://cmssw.cvs.cern.ch/cgi-bin/cmssw.cgi/UserCode/Forthomme/lpair/|here]]) studying two different kind of processes:

1. `DESY` version: developed for electron-proton collisions in HERA, with built-in option for proton-proton collisions as //test//. This version allows one to study elastic and inelastic (single dissociation) processes for the production of dileptons; and

2. `CDF` version: improved version which allows one to study elastic and double dissociation processes with more phase-space cuts available.

In this current analysis, we focus in the exclusive dimuon production, γγ -> μ^+^μ^-^, in inelastic collisions (single dissociation). LPAIR makes use of the [[http://home.thep.lu.se/~torbjorn/pythiaaux/introduction.html|JetSet]] library present in [[http://home.thep.lu.se/~torbjorn/pythiaaux/present.html|Pythia]] in order to perform the hadronization of the proton remnants.

The built-in options for proton dissociation in LPAIR make use of two parametrizations for the parton densities inside the proton, namely:

1. `SURI-YENNIE` [[http://www.sciencedirect.com/science/article/pii/0003491672902424|Ann. of Phys. 72 (1972) 243]] with option `11`; and

2. `BRASSE` [[http://www.sciencedirect.com/science/article/pii/0550321376902315|Nucl. Phys. B110 (1976) 413]] with option `12` in the `LPAIR` card. This parametrization is restricted: M,,X,, < 2 GeV and Q^2^ < 5 GeV^2^.

Due to the larger hadronic masses and p,,T,, distributions of the dimuon pair probed in the LHC kinematical regime, we employ SURI-YENNIE in this analysis.

Following the implementation made by Dariusz Bocian (IFJ-PAN, Krakow) [[http://th-www.if.uj.edu.pl/acta/vol35/abs/v35p2417.htm|Acta Phys. Polon. B35 (2004) 2417]], the current `LPAIR` code (`DESY` version) was modified in order to account for the proton-nucleus collisions from previous studies. Then, LPAIR samples are produced as `HBOOK` files, which have to be converted to `ROOT` files using the [[http://root.cern.ch/root/HowtoConvert.html|h2root]] script provided by [[http://root.cern.ch/drupal/|ROOT]].

In case one has several `ROOT` files to merge, the [[http://root.cern.ch/drupal/content/how-merge-histogram-files|hadd]] script is employed.


== Set up ==

=== Code changes ===

A few changes are made in the code to have access to more information about the particles in the event sample produced in `LPAIR`, especially to distinguish the muons from the exclusive production from the remnants from the proton break up. Then, two changes are made in the file //ilpair-cms-pp.f// in order to store information from `JetSet` in the `HBOOK` files:

1. particle status code, //ks//, at line 246; and

2. particle parentage, //icode//, at line 248.

Also, taking advantage for the fact that `LPAIR` performs the theoretical calculation in terms of Q^2^, the p,,T,, cut is internally applied by means of a Q^2^ cut in file //peripp.f// at line 29.


=== Event samples ===

The samples are produced with 1 million (1M) events, to check the shape of all kinematic distributions, and 5 million (5M) events in order to have enough statistics for high-p,,T,, dimuons. For the former, the samples are produced by merging ten sub-samples containing 100k events, which are obtained by running `LPAIR` at a time. while for the latter, five samples of 1M events by applying cuts on Q^2^: 0-1, 1-5, 5-20, 20-50, and 50-100 GeV^2^. The production of each of the sample with 1M events follows the same procedure as for 1M events for the whole Q^2^ range.

It is worth to notice that the histograms in the distributions with 5M events are **stacked**, and each individual set of events can be distinguished by the lines crossing vertically the histogram.


=== Structure functions ===

The built-in PDFs in `LPAIR` are replaced by two paramatrizations for the parton densities:

1. Glueck-Reya-Vogt (`GRV`) [[http://dx.doi.org/10.1007/s100520050289|Eur.Phys.J. C5 (1998) 461-470]]: version `GRV95` at leading order (`LO`) in α,,s,,.
{{{
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*                                                                   *
*     G R V  -  P R O T O N  - P A R A M E T R I Z A T I O N S      *
*                                                                   *
*                          1998 UPDATE                              *
*                                                                   *
*                  For a detailed explanation see                   *
*                   M. Glueck, E. Reya, A. Vogt :                   *
*        hep-ph/9806404  =  DO-TH 98/07  =  WUE-ITP-98-019          *
*                  (To appear in Eur. Phys. J. C)                   *
*                                                                   *
*   This package contains subroutines returning the light-parton    *
*   distributions in NLO (for the MSbar and DIS schemes) and LO;    * 
*   the respective light-parton, charm, and bottom contributions    *
*   to F2(electromagnetic); and the scale dependence of alpha_s.    *
*                                                                   *
*   The parton densities and F2 values are calculated from inter-   *
*   polation grids covering the regions                             *
*         Q^2/GeV^2  between   0.8   and  1.E6 ( 1.E4 for F2 )      *
*            x       between  1.E-9  and   1.                       *
*   Any call outside these regions stops the program execution.     *
*                                                                   *
*   At Q^2 = MZ^2, alpha_s reads  0.114 (0.125) in NLO (LO); the    *
*   heavy quark thresholds, QH^2 = mh^2, in the beta function are   *
*            mc = 1.4 GeV,  mb = 4.5 GeV,  mt = 175 GeV.            *
*   Note that the NLO alpha_s running is different from GRV(94).    * 
*                                                                   *
*    Questions, comments etc to:  avogt@physik.uni-wuerzburg.de     *
*                                                                   *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
}}}

2. Parametrization by Fiore et al [[http://epja.epj.org/articles/epja/abs/2002/10/100500505/100500505.html|Eur. Phys. J. A 15, 505-515 (2002)]].

>**Abstract**: An explicit model realizing parton-hadron duality and fitting the data is suggested. Complex nonlinear Regge trajectories are important ingredients of the 
>model. The inclusion of ∆ and N^∗^ trajectories should account for all resonances in the direct channel. The exotic trajectory is responsible for the smooth background.

This parametrization is meant to fit the data for the low Q^2^ region, reproducing the resonances of low-mass mesons. The figure below shows the distribution F,,2,, vs. `x` for Q^2^ = 0.5 GeV^2^:

[[Image(source:/trunk/plots/FIORE_F2_x.png, 500px)]]

=== Variables ===

The final-state kinematics is used to make the distributions in terms of the variables of the interacting particles, like the photon virtuality, Q^2^, by:

> Q^2^ = [P,,p,,(E)-p,,rem,,(E)]^2^-[P,,p,,(x)-p,,rem,,(x)]^2^-[P,,p,,(y)-p,,rem,,(y)]^2^-[P,,p,,(z)-p,,rem,,(z)]^2^

and the momentum fraction of the proton carried by the photon, x, by

> x = Q^2^/(M,,X,,^2^-M,,p,,^2^+Q^2^),

with ξ given by

> ξ=`log`,,10,,(x)


== Results ==

=== No experimental cuts ===

==== Cross sections ====

The predicted cross sections using each PDF for the parton densities are:

||= **PDF**           =||= **Cross section (pb)** =||
||= **`SURI-YENNIE`** =||  9262.   ||
||= **`FIORE`**       =||  10557.  ||
||= **`GRV`**         =||  7749.   ||

and when producing the sub-samples by Q^2^ cuts:

||= **PDF**           =||||||||||= **Cross section (pb)** =||
||= Q^2^ (GeV^2^)     =||= 0-1.        =||= 1.-5.  =||= 5.-20. =||= 20.-50. =||= 50.-100. =||
||= **`SURI-YENNIE`** =||  3379.41      ||  387.51  ||  73.95   ||  13.10    ||  3.86      ||
||= **`FIORE`**       =||  4140.11      ||  747.88  ||  40.18   ||  0.477    ||  0.0124    ||
||= **`GRV`**         =||  2439.74      ||  484.31  ||  105.41  ||  19.22    ||  5.51      ||

==== Distributions ====

The kinematic distributions are presented below for the sets of 1M and 5M events considering the possibilities for the parton densities.

//(Right-click on the images and select 'Open in a new Tab' in order to enlarge them)//

||||||= **1M events** =||
||= **`SURI-YENNIE`** =||= **`GRV`** =||= **`FIORE`** =||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_contour.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_contour.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_contour.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_contourlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_contourlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_contourlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_contourx.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_contourx.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_contourx.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_etapair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_etapair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_etapair.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_etarem.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_etarem.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_etarem.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_invm.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_invm.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_invm.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_invmlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_invmlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_invmlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_lego.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_lego.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_lego.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_legolarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_legolarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_legolarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_legox.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_legox.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_legox.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_legoxlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_legoxlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_legoxlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_mx.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_mx.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_mx.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_mx_zoom.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_mx_zoom.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_mx_zoom.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_mx_zoom2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_mx_zoom2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_mx_zoom2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_mx2_zoom.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_mx2_zoom.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_mx2_zoom.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_mx2_zoom2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_mx2_zoom2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_mx2_zoom2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_ptpair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_ptpair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_ptpair.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_ptpairlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_ptpairlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_ptpairlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_Q2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_Q2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_Q2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_Q2large.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_Q2large.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_Q2large.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_x.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_x.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_x.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_xi.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_xi.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_xi.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_xilog.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_xilog.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_xilog.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/1M_evt/SURI_1Mevt_ypair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/1M_evt/GRV_1Mevt_ypair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/1M_evt/FIORE_1Mevt_ypair.png, 500px)]] ||


||||||= **5M events** =||
||= **`SURI-YENNIE`** =||= **`GRV`** =||= **`FIORE`** =||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_contour.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_contour.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_contour.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_contourlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_contourlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_contourlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_contourx.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_contourx.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_contourx.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_etapair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_etapair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_etapair.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_etarem.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_etarem.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_etarem.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_invm.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_invm.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_invm.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_invmlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_invmlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_invmlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_lego.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_lego.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_lego.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_legolarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_legolarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_legolarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_legox.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_legox.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_legox.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_legoxlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_legoxlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_legoxlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_mx.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_mx.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_mx.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_mx_zoom.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_mx_zoom.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_mx_zoom.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_mx_zoom2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_mx_zoom2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_mx_zoom2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_mx2_zoom.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_mx2_zoom.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_mx2_zoom.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_mx2_zoom2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_mx2_zoom2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_mx2_zoom2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_ptpair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_ptpair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_ptpair.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_ptpairlarge.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_ptpairlarge.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_ptpairlarge.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_Q2.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_Q2.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_Q2.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_Q2large.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_Q2large.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_Q2large.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_x.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_x.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_x.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_xi.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_xi.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_xi.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_xilog.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_xilog.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_xilog.png, 500px)]] ||
|| [[Image(source:/trunk/plots/no_cuts/5M_evt/SURI_5Mevt_ypair.png, 500px)]] ||  [[Image(source:/trunk/plots/no_cuts/5M_evt/GRV_5Mevt_ypair.png, 500px)]]  || [[Image(source:/trunk/plots/no_cuts/5M_evt/FIORE_5Mevt_ypair.png, 500px)]] ||


=== Experimental cuts ===

In order to have results closer to the observed results in the data analysis, event samples are produced within the experimental acceptance used for at trigger level in CMS:

1. p,,T,,(μ) > 10. GeV;

2. |η(μ)| < 2.4.

3. M(μ^+^μ^-^) > 10. GeV.

==== Cross sections ====

||= **PDF**           =||||= **Cross section (pb)** =||
||= M,,X,max,,        =||= 100 GeV =||= 300 GeV =||
||= **`SURI-YENNIE`** =||  0.82     ||  0.87     ||
||= **`GRV`**         =||  0.92     ||  1.01     ||

==== Distributions ====

The first set of plots shows the events restricted to a hadronic system with mass lower than **100 GeV**, while the second consider masses up to **300 GeV**.

||||||= **1M events** =||
||||||= **M,,X,, < 100 GeV** =||
||= **`SURI-YENNIE`** =||= **`GRV`** =||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_contour_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_contour_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_contourlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_contourlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_contourx_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_contourx_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_invm_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_invm_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_lego_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_lego_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_legolarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_legolarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_legox_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_legox_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_legoxlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_legoxlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_mx_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_mx_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_x_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_x_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_xi_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_xi_Q2_nocut_exp_accp_MXmax_100.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/SURI_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_100GeV/GRV_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_100.png, 500px)]] ||


||||||= **1M events** =||
||||||= **M,,X,, < 300 GeV** =||
||= **`SURI-YENNIE`** =||= **`GRV`** =||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_contour_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_contour_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_contourlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_contourlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_contourx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_contourx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_invm_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_invm_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_lego_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_lego_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_legolarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_legolarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_legox_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_legox_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_legoxlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_legoxlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_mx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_mx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_x_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_x_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_xi_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_xi_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/SURI_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/MXmax_300GeV/GRV_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||


=== Ratio ===

The comparisons are performed by, first, the ratio between the distributions with and without experimental acceptance and, next, the `SURI-YENNIE` and `GRV` parametrizations.


||||||= **1M events** =||
||||||= **M,,X,, < 300 GeV** =||
||= **`SURI-YENNIE`** =||= **`GRV`** =||
|||| to be added ||
{{{#!comment
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_invm_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_invm_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_mx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_mx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_x_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_x_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_xi_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_xi_Q2_nocut_exp_accp_MXmax_300.png, 500px)]]  ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI:cuts-nocuts_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||  [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_GRV:cuts-nocuts_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
}}}


||||||= **1M events** =||
||||||= **M,,X,, < 300 GeV** =||
||||||= **`RATIO SURI-GRV`** =||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_etapair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_etarem_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_invm_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_invmlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_mx_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_mx_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_mx_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_mx2_zoom_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_mx2_zoom2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_ptpair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_ptpairlarge_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_Q2_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_Q2large_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_x_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_xi_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||
|| [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_xilog_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] || [[Image(source:/trunk/plots/exp_cuts/ratio_MXmax_300GeV/RATIO_SURI-GRV_1Mevt_ypair_Q2_nocut_exp_accp_MXmax_300.png, 500px)]] ||||


== LPAIR++ ==

to be added