Changeset 495 in svn for trunk/paper/notes.tex

Timestamp:

Jul 16, 2009, 2:00:20 AM (15 years ago)

Author:

Xavier Rouby

Message:

new: calorimeter endcaps

File:

• trunk/paper/notes.tex (modified) (7 diffs)

trunk/paper/notes.tex

@@ -130 +130 @@
 
 The overall layout of the general-purpose detector simulated by \textsc{Delphes} is shown in Fig.~\ref{fig:GenDet3}. 
-A central tracking system (\textsc{tracker}) is surrounded by an electromagnetic and a hadron calorimeters (\textsc{ecal} and \textsc{hcal}, resp.). Two forward calorimeters (\textsc{fcal}) ensure a larger geometric coverage for the measurement of the missing transverse energy. Finally, a muon system (\textsc{muon}) encloses the central detector volume
+A central tracking system (\textsc{tracker}) is surrounded by an electromagnetic and a hadron calorimeters (\textsc{ecal} and \textsc{hcal}, resp., each with a central region and two endcaps). Two forward calorimeters (\textsc{fcal}) ensure a larger geometric coverage for the measurement of the missing transverse energy. Finally, a muon system (\textsc{muon}) encloses the central detector volume
 The fast simulation of the detector response takes into account geometrical acceptance of sub-detectors and their finite resolution, as defined in the detector data card\footnote{\texttt{[code] }See the \texttt{RESOLution} class.}. 
 If no such file is provided, predefined values based on ``typical'' \textsc{cms} acceptances and resolutions are used\footnote{\texttt{[code] }Detector and trigger cards for the \textsc{atlas} and \textsc{cms} experiments are also provided in \texttt{data/} directory.}. The geometrical coverage of the various subsystems used in the default configuration are summarised in Tab.~\ref{tab:defEta}.
@@ -144 +144 @@
 \textsc{tracker}        & {\verb CEN_max_tracker }      & $[-2.5; 2.5]$         & $[-\pi ; \pi]$\\
 \textsc{ecal}, \textsc{hcal} & {\verb CEN_max_calo_cen }& $[-3.0 ; 3.0]$        & $[-\pi ; \pi]$\\
+\textsc{ecal}, \textsc{hcal} endcaps & {\verb CEN_max_calo_ec }& $[-3 ; -1.7] \& [1.7 ; 3]$   & $[-\pi ; \pi]$\\
 \textsc{fcal}           & {\verb CEN_max_calo_fwd }     & $[-5 ; -3]$ \& $[3 ;5]$     & $[-\pi ; \pi]$\\
 \textsc{muon}           & {\verb CEN_max_mu }           & $[-2.4 ; 2.4]$        & $[-\pi ; \pi]$\\ \hline
@@ -202 +203 @@
         & $N$ (GeV)& {\verb ELG_Ncen }  & $0.25$ \\
         & $C$ & {\verb ELG_Ccen }  & $0.0055$ \\
+  \multicolumn{4}{l}{\textsc{ecal}, end caps} \\
+         & $S$ (GeV$^{1/2}$) & {\verb ELG_Sec }  & $0.05$ \\
+         & $N$ (GeV)& {\verb ELG_Nec }  & $0.25$ \\
+         & $C$ & {\verb ELG_Cec }  & $0.0055$ \\
  \multicolumn{4}{l}{\textsc{fcal}, electromagnetic part} \\
         & $S$ (GeV$^{1/2}$)& {\verb ELG_Sfwd }  & $2.084$ \\
@@ -207 +212 @@
         & $C$ & {\verb ELG_Cfwd }  & $0.107$ \\
  \multicolumn{4}{l}{\textsc{hcal}} \\
-        & $S$ (GeV$^{1/2}$)& {\verb HAD_Shcal } & $1.5$ \\
-        & $N$ (GeV)& {\verb HAD_Nhcal } & $0$\\
-        & $C$ & {\verb HAD_Chcal } & $0.05$\\
+        & $S$ (GeV$^{1/2}$)& {\verb HAD_Scen } & $1.5$ \\
+        & $N$ (GeV)& {\verb HAD_Ncen } & $0$\\
+        & $C$ & {\verb HAD_Ccen } & $0.05$\\
+  \multicolumn{4}{l}{\textsc{hcal}, end caps} \\
+         & $S$ (GeV$^{1/2}$)& {\verb HAD_Sec } & $1.5$ \\
+         & $N$ (GeV)& {\verb HAD_Nec } & $0$\\
+         & $C$ & {\verb HAD_Cec } & $0.05$\\
  \multicolumn{4}{l}{\textsc{fcal}, hadronic part} \\
-        & $S$ (GeV$^{1/2}$)& {\verb HAD_Shf }   & $2.7$\\
-        & $N$ (GeV)& {\verb HAD_Nhf }   & $0$ \\
-        & $C$ & {\verb HAD_Chf }   & $0.13$\\
+        & $S$ (GeV$^{1/2}$)& {\verb HAD_Sfwd }   & $2.7$\\
+        & $N$ (GeV)& {\verb HAD_Nfwd }   & $0$ \\
+        & $C$ & {\verb HAD_Cfwd }   & $0.13$\\
 \hline
 \end{tabular}
@@ -895 +904 @@
 # Detector extension, in pseudorapidity units (|eta|)
 CEN_max_tracker    2.5     // Maximum tracker coverage
-CEN_max_calo_cen   3.0     // central calorimeter coverage
+CEN_max_calo_cen   1.7     // central calorimeter coverage
+CEN_max_calo_ec    3.0     // calorimeter endcap coverage
 CEN_max_calo_fwd   5.0     // forward calorimeter pseudorapidity coverage
 CEN_max_mu         2.4     // muon chambers pseudorapidity coverage
  
-# Energy resolution for electron/photon
+# Energy resolution for electrons/photons in central/endcap/fwd/zdc calos
 # \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
 ELG_Scen          0.05     // S term for central ECAL
-ELG_Ncen          0.25     // N term for central ECAL
-ELG_Ccen          0.005    // C term for central ECAL
+ELG_Ncen          0.25     // N term 
+ELG_Ccen          0.005    // C term 
+ELG_Sec           0.05     // S term for ECAL endcap
+ELG_Nec           0.25     // N term
+ELG_Cec           0.005    // C term
 ELG_Sfwd          2.084    // S term for FCAL
-ELG_Nfwd          0.       // N term for FCAL
-ELG_Cfwd          0.107    // C term for FCAL
+ELG_Nfwd          0.       // N term 
+ELG_Cfwd          0.107    // C term 
 ELG_Szdc          0.70     // S term for ZDC
-ELG_Nzdc          0.       // N term for ZDC
-ELG_Czdc          0.08     // C term for ZDC
-
-
-# Energy resolution for hadrons in ecal/hcal/hf
+ELG_Nzdc          0.       // N term 
+ELG_Czdc          0.08     // C term 
+
+
+# Energy resolution for hadrons in central/endcap/fwd/zdc calos
 # \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
-HAD_Shcal         1.5      // S term for central HCAL
-HAD_Nhcal         0.       // N term for central HCAL
-HAD_Chcal         0.05     // C term for central HCAL
-HAD_Shf           2.7      // S term for FCAL
-HAD_Nhf           0.       // N term for FCAL
-HAD_Chf           0.13     // C term for FCAL
+HAD_Scen          1.5      // S term for central HCAL
+HAD_Ncen          0.       // N term 
+HAD_Ccen          0.05     // C term
+HAD_Sec           1.5      // S term for HCAL endcap
+HAD_Nec           0.       // N term
+HAD_Cec           0.05     // C term
+HAD_Sfwd          2.7      // S term for FCAL
+HAD_Nfwd          0.       // N term
+HAD_Cfwd          0.13     // C term
 HAD_Szdc          1.38     // S term for ZDC
-HAD_Nzdc          0.       // N term for ZDC
-HAD_Czdc          0.13     // C term for ZDC
+HAD_Nzdc          0.       // N term
+HAD_Czdc          0.13     // C term
 
 # Time resolution for ZDC/RP220/RP420
@@ -1047 +1063 @@
 \end{quote}
 In general, energies, momenta and masses are expressed in GeV, GeV$/c$, GeV$/c^2$ respectively, and  magnetic fields in T.
-Geometrical extension are often referred in terms of pseudorapidity $\eta$, as the detectors are supposed to be symmetric in $\phi$. The number of events to run is also included in the detector card (\texttt{NEvents}).
+Geometrical extension are often referred in terms of pseudorapidity $\eta$, as the detectors are supposed to be symmetric in $\phi$. From version 1.8 onwards, the number of events to run is also be included in the detector card (\texttt{NEvents}). For version 1.7 and earlier, the parameters related to the calorimeter endcaps (\texttt{CEN\_max\_calo\_ec}, \texttt{ELG\_Sec}, \texttt{ELG\_Nec}, \texttt{ELG\_Cec}, \texttt{HAD\_Sec}, \texttt{HAD\_Nec} and \texttt{HAD\_Cec}) did not exist in the detector cards; in addition, some other variables had different names (\texttt{HAD\_Scen} was \texttt{HAD\_Sfcal}, \texttt{HAD\_Ncen} was \texttt{HAD\_Nfcal}, \texttt{HAD\_Ccen} was \texttt{HAD\_Cfcal}, \texttt{HAD\_Sfwd} was \texttt{HAD\_Shf}, \texttt{HAD\_Nfwd} was \texttt{HAD\_Nhf}, \texttt{HAD\_Cfwd} was \texttt{HAD\_Chf}). However, these cards are still completely compatible with new versions of \textsc{Delphes}. In such a case, the calorimeter endcaps are simply assumed to be located at the edge of the central calorimeter volumes, with the same resolution values.
  
 \item{\bf The trigger card }
@@ -1339 +1355 @@
 \end{verbatim}
  \end{quote}
-One can easily edit, modify and compile (\begin{verbatim}make\end{verbatim}) changes in this file.
+One can easily edit, modify and compile (\texttt{make}) changes in this file.
  
 \subsubsection{Adding the trigger information}