Fork me on GitHub

Changeset 495 in svn for trunk


Ignore:
Timestamp:
Jul 16, 2009, 2:00:20 AM (15 years ago)
Author:
Xavier Rouby
Message:

new: calorimeter endcaps

Location:
trunk/paper
Files:
4 edited

Legend:

Unmodified
Added
Removed
  • trunk/paper/CommPhysComp/notes.tex

    r490 r495  
    161161
    162162The overall layout of the general-purpose detector simulated by \textsc{Delphes} is shown in Fig.~\ref{fig:GenDet3}.
    163 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
     163A 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
    164164The 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.}.
    165165If 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}.
     
    174174Subdetector & & $\eta$ & $\phi$ \\
    175175\textsc{tracker}        & {\verb CEN_max_tracker }      & $[-2.5; 2.5]$         & $[-\pi ; \pi]$\\
    176 \textsc{ecal}, \textsc{hcal} & {\verb CEN_max_calo_cen }& $[-3.0 ; 3.0]$        & $[-\pi ; \pi]$\\
     176\textsc{ecal}, \textsc{hcal} & {\verb CEN_max_calo_cen }& $[-1.7 ; 1.7]$        & $[-\pi ; \pi]$\\
     177\textsc{ecal}, \textsc{hcal} endcaps & {\verb CEN_max_calo_ec }& $[-3 ; -1.7] \& [1.7 ; 3]$     & $[-\pi ; \pi]$\\
    177178\textsc{fcal}           & {\verb CEN_max_calo_fwd }     & $[-5 ; -3]$ \& $[3 ;5]$     & $[-\pi ; \pi]$\\
    178179\textsc{muon}           & {\verb CEN_max_mu }           & $[-2.4 ; 2.4]$        & $[-\pi ; \pi]$\\ \hline
     
    234235        & $N$ (GeV)& {\verb ELG_Ncen }  & $0.25$ \\
    235236        & $C$ & {\verb ELG_Ccen }  & $0.0055$ \\
     237 \multicolumn{4}{l}{\textsc{ecal}, end caps} \\
     238        & $S$ (GeV$^{1/2}$) & {\verb ELG_Sec }  & $0.05$ \\
     239        & $N$ (GeV)& {\verb ELG_Nec }  & $0.25$ \\
     240        & $C$ & {\verb ELG_Cec }  & $0.0055$ \\
    236241 \multicolumn{4}{l}{\textsc{fcal}, electromagnetic part} \\
    237242        & $S$ (GeV$^{1/2}$)& {\verb ELG_Sfwd }  & $2.084$ \\
     
    239244        & $C$ & {\verb ELG_Cfwd }  & $0.107$ \\
    240245 \multicolumn{4}{l}{\textsc{hcal}} \\
    241         & $S$ (GeV$^{1/2}$)& {\verb HAD_Shcal } & $1.5$ \\
    242         & $N$ (GeV)& {\verb HAD_Nhcal } & $0$\\
    243         & $C$ & {\verb HAD_Chcal } & $0.05$\\
     246        & $S$ (GeV$^{1/2}$)& {\verb HAD_Scen } & $1.5$ \\
     247        & $N$ (GeV)& {\verb HAD_Ncen } & $0$\\
     248        & $C$ & {\verb HAD_Ccen } & $0.05$\\
     249 \multicolumn{4}{l}{\textsc{hcal}, end caps} \\
     250        & $S$ (GeV$^{1/2}$)& {\verb HAD_Sec } & $1.5$ \\
     251        & $N$ (GeV)& {\verb HAD_Nec } & $0$\\
     252        & $C$ & {\verb HAD_Cec } & $0.05$\\
    244253 \multicolumn{4}{l}{\textsc{fcal}, hadronic part} \\
    245         & $S$ (GeV$^{1/2}$)& {\verb HAD_Shf }   & $2.7$\\
    246         & $N$ (GeV)& {\verb HAD_Nhf }   & $0$ \\
    247         & $C$ & {\verb HAD_Chf }   & $0.13$\\
     254        & $S$ (GeV$^{1/2}$)& {\verb HAD_Sfwd }   & $2.7$\\
     255        & $N$ (GeV)& {\verb HAD_Nfwd }   & $0$ \\
     256        & $C$ & {\verb HAD_Cfwd }   & $0.13$\\
    248257\hline
    249258\end{tabular}
     
    941950# Detector extension, in pseudorapidity units (|eta|)
    942951CEN_max_tracker    2.5     // Maximum tracker coverage
    943 CEN_max_calo_cen   3.0     // central calorimeter coverage
     952CEN_max_calo_cen   1.7     // central calorimeter coverage
     953CEN_max_calo_ec    3.0     // calorimeter endcap coverage
    944954CEN_max_calo_fwd   5.0     // forward calorimeter pseudorapidity coverage
    945955CEN_max_mu         2.4     // muon chambers pseudorapidity coverage
    946956 
    947 # Energy resolution for electron/photon
     957# Energy resolution for electron/photon in central/endcap/fwd/zdc calos
    948958# \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
    949959ELG_Scen          0.05     // S term for central ECAL
    950 ELG_Ncen          0.25     // N term for central ECAL
    951 ELG_Ccen          0.005    // C term for central ECAL
     960ELG_Ncen          0.25     // N term
     961ELG_Ccen          0.005    // C term
     962ELG_Sec           0.05     // S term for ECAL endcap
     963ELG_Nec           0.25     // N term
     964ELG_Cec           0.005    // C term
    952965ELG_Sfwd          2.084    // S term for FCAL
    953 ELG_Nfwd          0.       // N term for FCAL
    954 ELG_Cfwd          0.107    // C term for FCAL
     966ELG_Nfwd          0.       // N term
     967ELG_Cfwd          0.107    // C term
    955968ELG_Szdc          0.70     // S term for ZDC
    956 ELG_Nzdc          0.       // N term for ZDC
    957 ELG_Czdc          0.08     // C term for ZDC
    958 
    959 # Energy resolution for hadrons in ecal/hcal/hf
     969ELG_Nzdc          0.       // N term
     970ELG_Czdc          0.08     // C term
     971
     972# Energy resolution for hadrons in central/endcap/fwd/zdc calos
    960973# \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
    961 HAD_Shcal         1.5      // S term for central HCAL
    962 HAD_Nhcal         0.       // N term for central HCAL
    963 HAD_Chcal         0.05     // C term for central HCAL
    964 HAD_Shf           2.7      // S term for FCAL
    965 HAD_Nhf           0.       // N term for FCAL
    966 HAD_Chf           0.13     // C term for FCAL
     974HAD_Scen          1.5      // S term for central HCAL
     975HAD_Ncen          0.       // N term
     976HAD_Ccen          0.05     // C term
     977HAD_Sec           1.5      // S term for HCAL endcap
     978HAD_Nec           0.       // N term
     979HAD_Cec           0.05     // C term
     980HAD_Sfwd          2.7      // S term for FCAL
     981HAD_Nfwd          0.       // N term
     982HAD_Cfwd          0.13     // C term
    967983HAD_Szdc          1.38     // S term for ZDC
    968 HAD_Nzdc          0.       // N term for ZDC
    969 HAD_Czdc          0.13     // C term for ZDC
     984HAD_Nzdc          0.       // N term
     985HAD_Czdc          0.13     // C term
    970986
    971987# Time resolution for ZDC/RP220/RP420
     
    10241040ISOL_PT          2.0  //minimal pt of tracks for isolation criteria
    10251041ISOL_Cone        0.5  //Cone  for isolation criteria
     1042ISOL_Calo_Cone   0.4  //Cone for calorimetric isolation
    10261043ISOL_Calo_ET     2.0  //minimal tower E_T for isolation criteria. 1E99 means "off"
    10271044ISOL_Calo_Grid   3    //Grid size (N x N) for calorimetric isolation
    10281045
    10291046# General jet variable
    1030 JET_coneradius   0.7    // generic jet radius
    1031 JET_jetalgo      1      // 1 for Cone algorithm,
    1032                         // 2 for MidPoint algorithm,
    1033                         // 3 for SIScone algorithm,
    1034                         // 4 for kt algorithm
    1035                         // 5 for Cambridge/Aachen algorithm
    1036                         // 6 for anti-kt algorithm
    1037 JET_seed         1.0    // minimum seed to start jet reconstruction, in GeV
    1038 JET_Eflow        1      // Energy flow: perfect energy assumed in the tracker coverage.
    1039                         // 1 is 'on' ; 0 is 'off'
     1047JET_coneradius   0.7  // generic jet radius
     1048JET_jetalgo      1    // 1 for Cone algorithm,
     1049                      // 2 for MidPoint algorithm,
     1050                      // 3 for SIScone algorithm,
     1051                      // 4 for kt algorithm
     1052                      // 5 for Cambridge/Aachen algorithm
     1053                      // 6 for anti-kt algorithm
     1054JET_seed         1.0  // minimum seed to start jet reconstruction, in GeV
     1055JET_Eflow        1    // Energy flow: perfect energy assumed in the tracker coverage.
     1056                      // 1 is 'on' ; 0 is 'off'
    10401057\end{verbatim}
    10411058\end{quote}
     
    10441061\begin{verbatim}
    10451062# Tagging definition
    1046 BTAG_b           40      // b-tag efficiency (%)
    1047 BTAG_mistag_c    10      // mistagging (%)
    1048 BTAG_mistag_l    1       // mistagging (%)
     1063BTAG_b           40    // b-tag efficiency (%)
     1064BTAG_mistag_c    10    // mistagging (%)
     1065BTAG_mistag_l    1     // mistagging (%)
    10491066 
    10501067# FLAGS
    1051 FLAG_bfield      1       //1 to run the bfield propagation else 0
    1052 FLAG_vfd         1       //1 to run the very forward detectors else 0
    1053 FLAG_RP          1       //1 to run the very forward detectors else 0
    1054 FLAG_trigger     1       //1 to run the trigger selection else 0
    1055 FLAG_frog        1       //1 to run the FROG event display
    1056 FLAG_lhco        1       //1 to run the LHCO
     1068FLAG_bfield      1     //1 to run the bfield propagation else 0
     1069FLAG_vfd         1     //1 to run the very forward detectors else 0
     1070FLAG_RP          1     //1 to run the very forward detectors else 0
     1071FLAG_trigger     1     //1 to run the trigger selection else 0
     1072FLAG_frog        1     //1 to run the FROG event display
     1073FLAG_lhco        1     //1 to run the LHCO
    10571074
    10581075# In case BField propagation allowed
    1059 TRACK_radius      129     // radius of the BField coverage, in cm
    1060 TRACK_length      300     // length of the BField coverage, in cm
    1061 TRACK_bfield_x    0       // X component of the BField, in T
    1062 TRACK_bfield_y    0       // Y component of the BField, in T
    1063 TRACK_bfield_z    3.8     // Z component of the BField, in T
     1076TRACK_radius      129   // radius of the BField coverage, in cm
     1077TRACK_length      300   // length of the BField coverage, in cm
     1078TRACK_bfield_x    0     // X component of the BField, in T
     1079TRACK_bfield_y    0     // Y component of the BField, in T
     1080TRACK_bfield_z    3.8   // Z component of the BField, in T
    10641081
    10651082# Very forward detector extension, in pseudorapidity
    10661083# if allowed
    1067 VFD_min_zdc       8.3     // Zero-Degree neutral Calorimeter
    1068 VFD_s_zdc         140     // distance of the ZDC, from the IP, in [m]
     1084VFD_min_zdc       8.3   // Zero-Degree neutral Calorimeter
     1085VFD_s_zdc         140   // distance of the ZDC, from the IP, in [m]
    10691086\end{verbatim}
    10701087\end{quote}
     
    11021119
    11031120In general, energies, momenta and masses are expressed in GeV, GeV$/c$, GeV$/c^2$ respectively, and  magnetic fields in T.
    1104 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 will also be included in the detector card (\texttt{NEvents}).
     1121Geometrical 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.
    11051122 
    11061123\item{\bf The trigger card }
     
    13941411\end{verbatim}
    13951412 \end{quote}
    1396 One can easily edit, modify and compile (\begin{verbatim}make\end{verbatim}) changes in this file.
     1413One can easily edit, modify and compile (\texttt{make}) changes in this file.
    13971414
    13981415\subsubsection{Adding the trigger information}
  • trunk/paper/notes.tex

    r493 r495  
    130130
    131131The overall layout of the general-purpose detector simulated by \textsc{Delphes} is shown in Fig.~\ref{fig:GenDet3}.
    132 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
     132A 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
    133133The 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.}.
    134134If 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}.
     
    144144\textsc{tracker}        & {\verb CEN_max_tracker }      & $[-2.5; 2.5]$         & $[-\pi ; \pi]$\\
    145145\textsc{ecal}, \textsc{hcal} & {\verb CEN_max_calo_cen }& $[-3.0 ; 3.0]$        & $[-\pi ; \pi]$\\
     146\textsc{ecal}, \textsc{hcal} endcaps & {\verb CEN_max_calo_ec }& $[-3 ; -1.7] \& [1.7 ; 3]$   & $[-\pi ; \pi]$\\
    146147\textsc{fcal}           & {\verb CEN_max_calo_fwd }     & $[-5 ; -3]$ \& $[3 ;5]$     & $[-\pi ; \pi]$\\
    147148\textsc{muon}           & {\verb CEN_max_mu }           & $[-2.4 ; 2.4]$        & $[-\pi ; \pi]$\\ \hline
     
    202203        & $N$ (GeV)& {\verb ELG_Ncen }  & $0.25$ \\
    203204        & $C$ & {\verb ELG_Ccen }  & $0.0055$ \\
     205  \multicolumn{4}{l}{\textsc{ecal}, end caps} \\
     206         & $S$ (GeV$^{1/2}$) & {\verb ELG_Sec }  & $0.05$ \\
     207         & $N$ (GeV)& {\verb ELG_Nec }  & $0.25$ \\
     208         & $C$ & {\verb ELG_Cec }  & $0.0055$ \\
    204209 \multicolumn{4}{l}{\textsc{fcal}, electromagnetic part} \\
    205210        & $S$ (GeV$^{1/2}$)& {\verb ELG_Sfwd }  & $2.084$ \\
     
    207212        & $C$ & {\verb ELG_Cfwd }  & $0.107$ \\
    208213 \multicolumn{4}{l}{\textsc{hcal}} \\
    209         & $S$ (GeV$^{1/2}$)& {\verb HAD_Shcal } & $1.5$ \\
    210         & $N$ (GeV)& {\verb HAD_Nhcal } & $0$\\
    211         & $C$ & {\verb HAD_Chcal } & $0.05$\\
     214        & $S$ (GeV$^{1/2}$)& {\verb HAD_Scen } & $1.5$ \\
     215        & $N$ (GeV)& {\verb HAD_Ncen } & $0$\\
     216        & $C$ & {\verb HAD_Ccen } & $0.05$\\
     217  \multicolumn{4}{l}{\textsc{hcal}, end caps} \\
     218         & $S$ (GeV$^{1/2}$)& {\verb HAD_Sec } & $1.5$ \\
     219         & $N$ (GeV)& {\verb HAD_Nec } & $0$\\
     220         & $C$ & {\verb HAD_Cec } & $0.05$\\
    212221 \multicolumn{4}{l}{\textsc{fcal}, hadronic part} \\
    213         & $S$ (GeV$^{1/2}$)& {\verb HAD_Shf }   & $2.7$\\
    214         & $N$ (GeV)& {\verb HAD_Nhf }   & $0$ \\
    215         & $C$ & {\verb HAD_Chf }   & $0.13$\\
     222        & $S$ (GeV$^{1/2}$)& {\verb HAD_Sfwd }   & $2.7$\\
     223        & $N$ (GeV)& {\verb HAD_Nfwd }   & $0$ \\
     224        & $C$ & {\verb HAD_Cfwd }   & $0.13$\\
    216225\hline
    217226\end{tabular}
     
    895904# Detector extension, in pseudorapidity units (|eta|)
    896905CEN_max_tracker    2.5     // Maximum tracker coverage
    897 CEN_max_calo_cen   3.0     // central calorimeter coverage
     906CEN_max_calo_cen   1.7     // central calorimeter coverage
     907CEN_max_calo_ec    3.0     // calorimeter endcap coverage
    898908CEN_max_calo_fwd   5.0     // forward calorimeter pseudorapidity coverage
    899909CEN_max_mu         2.4     // muon chambers pseudorapidity coverage
    900910 
    901 # Energy resolution for electron/photon
     911# Energy resolution for electrons/photons in central/endcap/fwd/zdc calos
    902912# \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
    903913ELG_Scen          0.05     // S term for central ECAL
    904 ELG_Ncen          0.25     // N term for central ECAL
    905 ELG_Ccen          0.005    // C term for central ECAL
     914ELG_Ncen          0.25     // N term
     915ELG_Ccen          0.005    // C term
     916ELG_Sec           0.05     // S term for ECAL endcap
     917ELG_Nec           0.25     // N term
     918ELG_Cec           0.005    // C term
    906919ELG_Sfwd          2.084    // S term for FCAL
    907 ELG_Nfwd          0.       // N term for FCAL
    908 ELG_Cfwd          0.107    // C term for FCAL
     920ELG_Nfwd          0.       // N term
     921ELG_Cfwd          0.107    // C term
    909922ELG_Szdc          0.70     // S term for ZDC
    910 ELG_Nzdc          0.       // N term for ZDC
    911 ELG_Czdc          0.08     // C term for ZDC
    912 
    913 
    914 # Energy resolution for hadrons in ecal/hcal/hf
     923ELG_Nzdc          0.       // N term
     924ELG_Czdc          0.08     // C term
     925
     926
     927# Energy resolution for hadrons in central/endcap/fwd/zdc calos
    915928# \sigma/E = C + N/E + S/\sqrt{E}, E in GeV
    916 HAD_Shcal         1.5      // S term for central HCAL
    917 HAD_Nhcal         0.       // N term for central HCAL
    918 HAD_Chcal         0.05     // C term for central HCAL
    919 HAD_Shf           2.7      // S term for FCAL
    920 HAD_Nhf           0.       // N term for FCAL
    921 HAD_Chf           0.13     // C term for FCAL
     929HAD_Scen          1.5      // S term for central HCAL
     930HAD_Ncen          0.       // N term
     931HAD_Ccen          0.05     // C term
     932HAD_Sec           1.5      // S term for HCAL endcap
     933HAD_Nec           0.       // N term
     934HAD_Cec           0.05     // C term
     935HAD_Sfwd          2.7      // S term for FCAL
     936HAD_Nfwd          0.       // N term
     937HAD_Cfwd          0.13     // C term
    922938HAD_Szdc          1.38     // S term for ZDC
    923 HAD_Nzdc          0.       // N term for ZDC
    924 HAD_Czdc          0.13     // C term for ZDC
     939HAD_Nzdc          0.       // N term
     940HAD_Czdc          0.13     // C term
    925941
    926942# Time resolution for ZDC/RP220/RP420
     
    10471063\end{quote}
    10481064In general, energies, momenta and masses are expressed in GeV, GeV$/c$, GeV$/c^2$ respectively, and  magnetic fields in T.
    1049 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}).
     1065Geometrical 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.
    10501066 
    10511067\item{\bf The trigger card }
     
    13391355\end{verbatim}
    13401356 \end{quote}
    1341 One can easily edit, modify and compile (\begin{verbatim}make\end{verbatim}) changes in this file.
     1357One can easily edit, modify and compile (\texttt{make}) changes in this file.
    13421358 
    13431359\subsubsection{Adding the trigger information}
Note: See TracChangeset for help on using the changeset viewer.