Difference between revisions of "TCS"
From Hall A Wiki
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| − | + | = Introduction = | |
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| + | TCS (timelike Compton Scattering) | ||
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| + | = Theory = | ||
= meeting = | = meeting = | ||
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* 2013/02/20 Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130220.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130220.pdf pdf] | * 2013/02/20 Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130220.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130220.pdf pdf] | ||
| − | = talk = | + | = past experiments = |
| + | |||
| + | [[CLAS6 TCS]] | ||
| + | |||
| + | = future experiment = | ||
| + | |||
| + | == CLAS12_TCS == | ||
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| + | * TCS (E12-12-001) at CLAS12, approved 120 days, rated A-, [http://www.jlab.org/exp_prog/proposals/12/PR12-12-001.pdf Submission at PAC 39] | ||
| + | |||
| + | == SoLID_TCS == | ||
| + | |||
| + | === talk === | ||
2013/03 SoLID Collbration meeting update by Zhiwen Zhao [http://hallaweb.jlab.org/12GeV/SoLID/meeting_coll/2013_03/solid_TCS_zwzhao_201303.pptx pptx][http://hallaweb.jlab.org/12GeV/SoLID/meeting_coll/2013_03/solid_TCS_zwzhao_201303.pdf pdf] | 2013/03 SoLID Collbration meeting update by Zhiwen Zhao [http://hallaweb.jlab.org/12GeV/SoLID/meeting_coll/2013_03/solid_TCS_zwzhao_201303.pptx pptx][http://hallaweb.jlab.org/12GeV/SoLID/meeting_coll/2013_03/solid_TCS_zwzhao_201303.pdf pdf] | ||
| − | = proposal = | + | === proposal === |
draft in updating | draft in updating | ||
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https://userweb.jlab.org/~turonski/tcs/proposals/solid/ | https://userweb.jlab.org/~turonski/tcs/proposals/solid/ | ||
| − | = doc = | + | === doc === |
* J/Psi (E12-12-006) at SoLID, approved 60 days, rated A-, [http://www.jlab.org/exp_prog/proposals/12/PR12-12-006.pdf Submission at PAC 39] | * J/Psi (E12-12-006) at SoLID, approved 60 days, rated A-, [http://www.jlab.org/exp_prog/proposals/12/PR12-12-006.pdf Submission at PAC 39] | ||
| − | = simulation result = | + | === simulation result === |
[https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_result/ SoLID_TCS_result] done in April 2013 | [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_result/ SoLID_TCS_result] done in April 2013 | ||
Revision as of 18:59, 10 November 2014
Contents
Introduction
TCS (timelike Compton Scattering)
Theory
meeting
past experiments
future experiment
CLAS12_TCS
- TCS (E12-12-001) at CLAS12, approved 120 days, rated A-, Submission at PAC 39
SoLID_TCS
talk
2013/03 SoLID Collbration meeting update by Zhiwen Zhao pptxpdf
proposal
draft in updating https://userweb.jlab.org/~turonski/tcs/proposals/solid/tcs_solid_proposal.pdf
working directory (any one can read and write) https://userweb.jlab.org/~turonski/tcs/proposals/solid/
doc
- J/Psi (E12-12-006) at SoLID, approved 60 days, rated A-, Submission at PAC 39
simulation result
SoLID_TCS_result done in April 2013
Plots are png and eps
simulation binning explained in SoLID_TCS_bin.txt
simulation binning with R' error can be used for plot, SoLID_TCS_Q2bin.txt and SoLID_TCS_etabin.txt
R_bins.txt, LO and NLO calculation from Jakub Wagner
R_bins.tar.gz for GPD model calculation from Vadim Guzey with details explained in R_bins.tar.gz_email
code
- genTCS
- grape-dilepton
- http://research.kek.jp/people/tabe/grape
- BH from electron on proton, used by the experiments at DESY/HERA
- similar result comparing to LPAIR, see here
It was written in early 2000 and depends on an older version of cernlib. To repeat its exact environment, I built a redhat7 virtual machine to run it, download from ifarm /home/zwzhao/work_halla/RH7.7z you need the free 7z program uncompress it and vmplayer to run it both user "zwzhao" and root has passwrod "111111" The code is under /home/zwzhao/grape-dilpeton_v1.1k ( I had to modify its makefile to compile it) My work dir is at /home/zwzhao/grape_work where you can see some examples Read its readme file basicly, create a new dir, get a grape.cards file, run integ (take a long time like 10 hours), run spring, then an ntuple "grp.rz" is produced. I convert grp.rz to a root file by h2root, then run analysis on it by https://jlabsvn.jlab.org/svnroot/solid/evgen/BH/anaGrape.C
- LPAIR
- used by the experiments at DESY/HERA
- Compton2.0
- BH from photoproduction, used by ZEUS
- GiBUU
- gibuu.hepforge.org
(It may work on neutron also) GiBUU does a good job with real photons on a proton (or heavier) target. It doesn't handle electroproduction as nicely (at least not the last time I asked the Giessen group). It is fairly straight forward to generate events, and there USED to be good examples of input jobcards on the website, but they have been removed recently while they upgrade. I'd think the best route is to email them directly to get the code and also ask for the example jobcards.
