(r7) BecAnalysisProtonProton < Main

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---+ <span style="color: #ff0000;"> *Multidimensional HBT analysis for pp @ 2.76TeV* </span>

This page describes the extraction of the signal of Bose-Einstein correlations of charged pion candidates i;e enhancement of pairs of same-charge particles with very small relative momentum from the sample of proton-proton collisions at 2.76TeV recorded by the CMS detector at LHC in 2013

*Working Directory*: /home/sdogra/pp276tev/ and /afs/cern.ch/work/s/sdogra/pp_min_bias/CMSSW_5_3_8_patch3

*Data Set Used*

<span style="color: #4169e1;"><span style="color: #2e8b57;"> *Data:* </span></span> [[https://cmsweb.cern.ch/das/request?input=dataset=/PPMinBias/Run2013A-PromptReco-v1/RECO][/PPMinBias/Run2013A-PromptReco-v1/RECO]]

<strong> <span style="color: #2e8b57;">Monte Carlo</span></strong>:[[https://cmsweb.cern.ch/das/request?input=dataset=/MinBias_TuneZ2_2760GeV_pythia6/HiWinter13-STARTHI53_V26-v1/GEN-SIM-RECO][/MinBias_TuneZ2_2760GeV_pythia6/HiWinter13-STARTHI53_V26-v1/GEN-SIM-RECO]]

*Event Selection:*

Trigger Used :<span style="color: #9400d3;"> <span style="color: #1e90ff;"><span style="color: #4169e1;">%PINK%HLT_PAMinBiasHF_OR_v1%ENDCOLOR%</span></span></span><span style="color: #1e90ff;"><span style="color: #4169e1;"> </span></span>

Event Filters : pileupVertexFilterCutGplus*PAcollisionEventSelection


*Track Selection*

   * Track Quality Cuts 

   <br />%TWISTY{id="" mode="div" showlink="Show cuts " hidelink="Hide cuts " remember="off" showimgright="%ICONURLPATH{toggleopen-small}%" hideimgright="%ICONURLPATH{toggleclose-small}%" start="hide" }%
   * ndof_cut &ge; 5;
   * nchi2_cut &le; 5 ;
   * dxy_cut &lt; .15;
   * rmin_cut &lt; 20. ;
   * rgen_cut &lt; 20. ;
   * pt_cut &ge; 0.2 ;
   * eta_cut &le; |2.4| ;
   %ENDTWISTY%


   * Track Quality Plots:

   <br />%TWISTY{id="" mode="div" showlink="Show plots " hidelink="Hide plots " remember="off" showimgright="%ICONURLPATH{toggleopen-small}%" hideimgright="%ICONURLPATH{toggleclose-small}%" start="hide" }%
   <br /> <img width="1008" alt="TracksQuality1.png" src="%ATTACHURLPATH%/TracksQuality1.png" height="300" />

   <br /> <img width="1008" alt="TrackQuality2.png" src="%ATTACHURLPATH%/TrackQuality2.png" height="300" />

   <br /> <img width="1008" alt="TrackQuality3.png" src="%ATTACHURLPATH%/TrackQuality3.png" height="300" />

   <br /> <img width="750" alt="TrackQuality4.png" src="%ATTACHURLPATH%/TrackQuality4.png" height="300" />
   %ENDTWISTY%



*Single Ratio*
   <br />%TWISTY{id="" mode="div" showlink="Show plot " hidelink="Hide plot" remember="off" showimgright="%ICONURLPATH{toggleopen-small}%" hideimgright="%ICONURLPATH{toggleclose-small}%" start="hide" }%

   <br /> <img width="300" alt="single_ratio_276tev.png" src="%ATTACHURLPATH%/single_ratio_276tev.png" height="300" />

%ENDTWISTY%


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-- Main.SunilDogra - 2013-03-20
Topic revision: r7 - 2013-08-13 - SandraPadula
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