Low p_T development

Links

• CMSSW source browser (1_2_0_pre1)
• Instructions

Table of contents

Installation

Standalone install on debian

SLC3 machine:

% setenv VO_CMS_SW_DIR <directory>
% setenv SCRAM_ARCH slc3_ia32_gcc323
% mkdir $VO_CMS_SW_DIR
% wget -O $VO_CMS_SW_DIR/aptinstaller.sh \
  http://cmsdoc.cern.ch/cms/cpt/Software/download/cms/aptinstaller.sh
% chmod +x $VO_CMS_SW_DIR/aptinstaller.sh
% $VO_CMS_SW_DIR/aptinstaller.sh setup -unsupported_distribution_hack \
  -repository cms -path $VO_CMS_SW_DIR
% eval `$VO_CMS_SW_DIR/aptinstaller.sh config -path $VO_CMS_SW_DIR -csh`
% apt-get update
% apt-cache search cmssw
% apt-get install cms+cmssw+CMSSW_1_2_0_pre1

Debian machine:

% setenv SCRAM_ARCH slc3_ia32_gcc323
% setenv VO_CMS_SW_DIR <directory>
% source $VO_CMS_SW_DIR/cmsset_default.csh
% scramv1 project CMSSW CMSSW_1_2_0_pre1

• Install libboost-dev.

Pixel clusters

Pixel digitizer

CMSSW/SimTracker/SiPixelDigitizer/data/PixelDigi.cfi

int32 AddPixelInefficiency = 0 // static loss only, v.low lumi
bool AddNoisyPixels = true
bool !MissCalibrate = true

Pixel clusterizer

CMSSW/RecoLocalTracker/SiPixelClusterizer/src/PixelThresholdClusterizer.cc
in make_cluster change

268     for ( int r = curpix.row()-2; r <= curpix.row()+2; r++) {
269       for ( int c = curpix.col()-2; c <= curpix.col()+2; c++) {

Cluster shape

Hit triplets

-- FerencSikler - 16 Oct 2006