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fcs:cepc:2017 [2017/09/18 19:42]
hepsim17 		fcs:cepc:2017 [2017/09/21 14:09]
hepsim17 [Some physics plots]
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 ===== CEPC tracking studies ===== ===== CEPC tracking studies =====
  
-====== Resolution studies using B=3 and R=1.25 m ======+This wiki describe track resolution studies using 2 designs with different outer tracker radius. 
 +The plots are done assuming flat distribution of single muons in |y|<3. 
 + 
 +====== Tracker using B=3T and R=1.25m ======
 Here is a short description on how to check track resolution using [[http://atlaswww.hep.anl.gov/hepsim/detectorinfo.php?id=sidcc2|CEPC-sidcc2]] detector which has the SiD envelope for tracking (R=1.25 m), 25 um pitch size and 3 Tesla field. Here is a short description on how to check track resolution using [[http://atlaswww.hep.anl.gov/hepsim/detectorinfo.php?id=sidcc2|CEPC-sidcc2]] detector which has the SiD envelope for tracking (R=1.25 m), 25 um pitch size and 3 Tesla field.
 The data are taken from [[http://atlaswww.hep.anl.gov/hepsim/list.php?find=rfull101|rfull101 dataset list]]. The data are taken from [[http://atlaswww.hep.anl.gov/hepsim/list.php?find=rfull101|rfull101 dataset list]].
Line 29: Line 32:
 {{:fcs:cepc:resolution_1overpt.png?400|}} {{:fcs:cepc:resolution_1overpt.png?400|}}
  
-The calculated values are: 
  
-<hidden> 
-<code> 
-#  X       Y     ErrorX-      ErrorY+       ErrorY-      ErrorY+  
-10.146249520505538 7.233707688030497E-4 5.704907825633882 5.704907825633882 8.502371007125989E-6 8.502371007125989E-6 
-29.97624545765604 2.4885582068389435E-4 5.78713865684815 5.78713865684815 2.7299775405151286E-6 2.7299775405151286E-6 
-49.954003533114985 1.4832996719960168E-4 5.769439544642645 5.769439544642645 1.5468566955835806E-6 1.5468566955835806E-6 
-69.93649191232116 1.0747555580737206E-4 5.73788457385378 5.73788457385378 1.207919858957492E-6 1.207919858957492E-6 
-89.98736169597974 8.74971031060202E-5 5.7789623998936674 5.7789623998936674 9.720552302933245E-7 9.720552302933245E-7 
-109.9722327265809 7.276974424666559E-5 5.785881825564851 5.785881825564851 8.011527768175124E-7 8.011527768175124E-7 
-130.00571018130168 6.643313435056274E-5 5.738190270370251 5.738190270370251 7.232826222201539E-7 7.232826222201539E-7 
-</code> 
-</hidden> 
  
  
-====== Resolution studies using B=3 and R=1.8 m ======+====== Tracker using B=3T and R=1.8m ======
  
 A new CEPC-Si detector was created using B=3 and R=1.8m tracker, which can fits to the envelope of CEPC-ILD detector, A new CEPC-Si detector was created using B=3 and R=1.8m tracker, which can fits to the envelope of CEPC-ILD detector,
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 {{:fcs:cepc:cepc3_res1.png?400|}} {{:fcs:cepc:cepc3_res1.png?400|}}
  
-{{:fcs:cepc:cepc_v3_ptover.png?400|}} 
  
-Here the data for the latter plot: +Here is the tracking resolution for 1/pt:
-<hidden> +
-<code> +
-# title=track resolution  dimension=6 +
-#  X       Y     ErrorX-      ErrorY+       ErrorY-      ErrorY+  +
-10.32433631523229 4.867902978029176E-4 5.649317349227959 5.649317349227959 9.095115287399043E-6 9.095115287399043E-6 +
-30.037640678369865 1.663426885561398E-4 5.749498917792368 5.749498917792368 2.5309641727660808E-6 2.5309641727660808E-6 +
-49.90826061858357 1.0363260377582206E-4 5.772779435179446 5.772779435179446 1.6407434405702103E-6 1.6407434405702103E-6 +
-70.01468589846364 7.435683114678843E-5 5.780868774405953 5.780868774405953 1.4610908375521488E-6 1.4610908375521488E-6 +
-90.0885946572771 6.167486360935256E-5 5.826907071697395 5.826907071697395 1.5285139237718334E-6 1.5285139237718334E-6 +
-109.9687018781744 5.009402782415849E-5 5.7704065390138695 5.7704065390138695 1.0579095942002432E-6 1.0579095942002432E-6 +
-130.05120795630376 4.777645240305135E-5 5.770596760482526 5.770596760482526 1.126358108856388E-6 1.126358108856388E-6+
  
 +
 +{{:fcs:cepc:cepc_track_resolution_overpt.png?400|}}
 +
 +The data file is {{ :fcs:cepc:cepc_track_resolution_overpt.jdat |}}.
 +You can read jdat file in PyROOT using this simple macro {{ :fcs:cepc:make_root.py|script to read jdat files}}
 +
 +
 +====== Tracking in Barrel and Endcap ======
 +
 +===== pT resolution =====
 +
 +As before, this was done using B=3 and R=1.8m tracker and [[http://atlaswww.hep.anl.gov/hepsim/detectorinfo.php?id=sidcc3|CEPC-sidcc3]].
 +
 +{{:fcs:cepc:cepc_track_resolution_overpt_barrel.png?400|}}
 +
 +{{:fcs:cepc:cepc_track_resolution_overpt_endcap.png?400|}}
 +
 +Data files are {{:fcs:cepc:cepc_track_resolution_overpt_barrel.jdat}},  {{:fcs:cepc:cepc_track_resolution_overpt_endcap.jdat}}
 +
 +The results were created with the scripts {{:fcs:cepc:cepc_track_resolution_overpt_barrel.py}}, {{:fcs:cepc:cepc_track_resolution_overpt_endcap.py}}
 +
 +===== d0 and z0 resolution =====
 +
 +{{:fcs:cepc:cepc_track_resolution_d0_barrel.png?400|}}
 +
 +{{:fcs:cepc:cepc_track_resolution_d0_endcap.png?400|}}
 +
 +{{:fcs:cepc:cepc_track_resolution_z0_barrel.png?400|}}
 +
 +{{:fcs:cepc:cepc_track_resolution_z0_endcap.png?400|}}
 +
 +
 +The files with data are:
 +
 +  * {{ :fcs:cepc:cepc_track_resolution_z0_barrel.jdat |}}   
 +  * {{ :fcs:cepc:cepc_track_resolution_z0_endcap.jdat |}}
 +  * {{ :fcs:cepc:cepc_track_resolution_d0_barrel.jdat |}}
 +  * {{ :fcs:cepc:cepc_track_resolution_d0_endcap.jdat |}}
 +
 +===== Some physics plots =====
 +
 +Here are a few plots illustrating physics performances. The figures have been done using fully identified muons and electrons (PandoraPFO). The following samples (tag rfull102) have been used:
 +
 +  * [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=148|gev250ee_pythia6_zpole_mumu]] - Z->mu+mu-
 +  * [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=292|gev250ee_pythia8_higgs_mumu]] - Higgs ->mu+mu+ (all Higgs processes)
 +  * [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=146|gev250ee_pythia6_zpole_ee]] - Z-> e+e-
 +  * [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=294|gev250ee_pythia8_zhiggs_nunumumu]] - Z0+Higgs-> nunu+mu+mu-
 +  * [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=295|gev250ee_pythia8_zhiggs_nunugg]] - Z0+Higgs-> nunu+gg
 +
 +You can get the data (for Z0+Higgs-> nunu+mu+mu-, for example), as:
 +<code bash>
 +bash   #  set bash if you haven't done this before 
 +wget http://atlaswww.hep.anl.gov/hepsim/soft/hs-toolkit.tgz -O - | tar -xz;
 +source hs-toolkit/setup.sh
 +hs-get gev250ee_pythia8_zhiggs_nunumumu          # download ProMC (truth) files
 +hs-get gev250ee_pythia8_zhiggs_nunumumu%rfull102 # download SLCIO files for rfull102 tag
 </code> </code>
-</hidden>+ 
 + 
 + 
 +See [[http://atlaswww.hep.anl.gov/hepsim/doc/doku.php?id=hepsim:quick|ProMC manual]]. You can convert ProMC data to STDHEP or LCIO (MCParticle) with full simulations using promc2stdhep or promc2lcio converters as discussed in 
 +[[hepsim:dev_full|this section]]. 
 + 
 + 
 +Here are a few plots that show the performance using [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=148|gev250ee_pythia6_zpole_mumu]]: 
 + 
 +{{:fcs:cepc:zpeak_mumu_fit.png?400|}} 
 + 
 +Here is the plot for [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=292|gev250ee_pythia8_higgs_mumu]] - Higgs ->mu+mu+ (all Higgs processes) 
 + 
 +{{:fcs:cepc:higgs_mumu_fit.png?400|}} 
 + 
 +Here is the plot for [[http://atlaswww.hep.anl.gov/hepsim/info.php?item=146|gev250ee_pythia6_zpole_ee]] - Z-> e+e- 
 + 
 +{{:fcs:cepc:zpeak_ee_fit.png?400|}}
  
  --- //[[[email protected]|Sergei Chekanov]] 2017/09/07 17:04//  --- //[[[email protected]|Sergei Chekanov]] 2017/09/07 17:04//
fcs/cepc/2017.txt · Last modified: 2017/09/21 14:09 by hepsim17
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