Contact
Name
Abideh Jafari
Position
Postdoc. Funding: FNRS.
Member since April 2014
Email
ajafarern.ch
Address
Centre for Cosmology, Particle Physics and Phenomenology - CP3
Université catholique de Louvain
2, Chemin du Cyclotron - Box L7.01.05
B-1348 Louvain-la-Neuve
Belgium
Phone
+32 10 47 3221
Office
E.359
Projects
I am involved in the following research directions:

Fast Simulation of the CMS experiment

A framework for Fast Simulation of particle interactions in the CMS detector (FastSim) has been developed and implemented in the overall simulation, reconstruction and analysis framework of CMS. It produces data samples in the same format as the one used by the Geant4-based (henceforth Full) Simulation and Reconstruction chain; the output of the Fast Simulation of CMS can therefore be used in the analysis in the same way as data and Full Simulation samples. FastSim is used in several physics analyses in CMS, in particular those requiring a generation of many samples to scan an extended parameter space of the physics model (e.g. SUSY) or for the purpose of estimating systematic uncertainties. It is also used by several groups to design future sub-detectors for the Phase-II CMS upgrades.
Related activities at UCL include the integration with the Full Simulation in the simulation of the electronic read-out ("digitization") and of the pileup of events from other proton-proton collisions, both in-time and out-of-time; the performance monitoring; and the overall maintenance and upgrade of the tracking-related code. Matthias Komm is current L3 convener of Tracking in FastSim, and Andrea Giammanco has been main responsible of the FastSim project from 2011 to 2013.

Search for exotic decays of the Higgs boson to a pair of new light bosons with two muons and two b jets in final states

We search for exotic decays of a Higgs boson to a pair of new light bosons, H->a1a1, where one of the light bosons decays to a pair of muons and the other one decays to a pair of b quarks. Such signatures are predicted in a number of well motivated extensions of the standard model, including the next-to-minimal supersymmetry and generic two Higgs doublet models with an additional scalar singlet.

Single top studies at LHC

The electroweak production cross section of single top quarks is an important measurement for LHC, being a potential window on "new physics" effects.
Past achievements of this group include the very first measurement at 7 TeV (in t channel) with 2010 data, followed by the most precise inclusive cross section measurements of t-channel cross section at 7, 8 and 13 TeV, and the first differential measurements at 13 TeV; the most precise |Vtb| extraction from single top in the world; the first measurement of W-helicity fractions in a single-top topology; the first observation of the tW production mode; the first measurement of single-top polarization in t channel; stringent limits on anomalous tWb, tgu, tgc couplings.

External collaborators: CMS collaboration.


Show past projects.
Publications in CP3
Showing 5 publications over 15. Show all publications.
All my publications on Inspire

2017

Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV
Khachatryan, Vardan and others
[Abstract] [PDF]
Refereed paper. 10th January.

2016

Search for electroweak production of charginos in final states with two tau leptons in pp collisions at sqrt(s) = 8 TeV
CMS Collaboration
[Abstract] [PDF] Submitted to JHEP
Report number: CMS-SUS-14-022, CERN-EP-2016-225

Refereed paper. 1st December.
Cross section measurement of t-channel single top quark production in pp collisions at sqrt(s) = 13 TeV
CMS Collaboration
[Abstract] [PDF] Most precise measurement of the single-top cross section at 13 TeV. Submitted to PLB
Refereed paper. Public experimental note. 4th October.
Combination of cross-section measurements of associated production of a single top quark and a W boson at sqrt(s)=8 TeV with the ATLAS and CMS experiments
ATLAS and CMS collaborations
[Full text] ATLAS-CONF-2016-023 and CMS-PAS-TOP-15-019 (double reference, as it is a joint note)
Public experimental note. 24th May.
Measurement of the inclusive cross section of single top-quark production in the t-channel at 13 TeV
CMS collaboration
[Full text]
Public experimental note. 25th March.


[UCLouvain] - [SST] [IRMP] - [SC] [PHYS]
Contact : Vincent Boucher & Jérôme de Favereau
Research
Job opportunities PhD position in NA62 experiment
Share