Difference between revisions of "TCS"

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This page has been moved to [https://solid.jlab.org/wiki/index.php/TCS https://solid.jlab.org/wiki/index.php/TCS] in the new [https://solid.jlab.org/wiki SoLID Wiki].  Please do not edit this page.
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link back to dilepton wiki https://hallaweb.jlab.org/wiki/index.php/Dilepton
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= Introduction =
 
= Introduction =
  
 
TCS (timelike Compton Scattering)
 
TCS (timelike Compton Scattering)
  
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= email list =  
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= meeting in 2013 =
  
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ee@jlab.org
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* 2013/04/17
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** https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_20150417.pptx
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** https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_20150417.pdf
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* 2013/04/10
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** [https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_9avril2015.pdf pdf] Boer Marie
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* 2013/04/3
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** [https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_3avril2015.pdf  pdf] Boer Marie
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* 2013/03/28
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** Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130328.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130328.pdf pdf]
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* 2013/03/13
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** Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130313.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130313.pdf pdf]
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** Rafayel [[Updated R]]
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* 2013/03/06 Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130306.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130306.pdf pdf]
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* 2013/02/20 Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130220.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/talk/SoLID_TCS_20130220.pdf pdf]
  
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register at  https://mailman.jlab.org/mailman/listinfo/ee
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= Theory =
  
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= meeting =
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https://www.dropbox.com/sh/lw7iyajs277odsp/AABaR0OM0oxEvuP80xnqoetda?dl=0
  
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* 2013/03/28
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- Timelike Compton scattering off the proton and generalized parton distributions (unpolarized cross section for TCS off the proton, beam and/or target spin asymmetries, dependence on GPD parametrization).  Ref.: M. Boër, M. Guidal and M. Vanderhaeghen, Eur. Phys. J. A 51 (2015) no.8,  103.
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** Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130328.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130328.pdf pdf]
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* 2013/03/13
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https://link.springer.com/article/10.1140%2Fepja%2Fi2015-15103-3
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** Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130313.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130313.pdf pdf]
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** Rafayel [[Updated R]]
+
  
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* 2013/03/06 Zhiwen Zhao [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130306.pptx pptx] [https://userweb.jlab.org/~zwzhao/TCS/SoLID_TCS_20130306.pdf pdf]
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- Timelike Compton scattering off the neutron (calculations for the neutron, comparison to the proton and angular momenta dependence). Ref.: M. Boër, M. Guidal and M. Vanderhaeghen, Eur. Phys. J. A  52 (2016) 33.
  
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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]
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https://link.springer.com/article/10.1140%2Fepja%2Fi2016-16033-2
  
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= Theory =
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- Timelike Compton scattering: Exclusive photoproduction of lepton pairs (original TCS paper, unpolarized and beam circularly polarized cross sections)
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E.R. Berger, M. Diehl and B. Pire, Eur. Phys. J.\C  23 (2002) 675.
  
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https://www.dropbox.com/sh/lw7iyajs277odsp/AABaR0OM0oxEvuP80xnqoetda?dl=0
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https://link.springer.com/article/10.1007%2Fs100520200917
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- Timelike Compton scattering with a linearly polarized photon beam (linearly polarized beam cross section) A.T. Goritschnig, B. Pire and J. Wagner, Phys. Rev. D 89 (2014) no.9, 094031.
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https://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.094031
  
 
= reference =
 
= reference =
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== CLAS12 TCS (linearly polarized) ==
 
== CLAS12 TCS (linearly polarized) ==
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= code =
 
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* genTCS
 
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** https://jlabsvn.jlab.org/svnroot/solid/evgen/genTCS
 
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** BH from quasi-real electron and real photon on proton, home made
 
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* grape-dilepton 
 
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** http://research.kek.jp/people/tabe/grape
 
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** BH from electron on proton, used by the experiments at DESY/HERA
 
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** see details how to run it and analysis result at https://jlabsvn.jlab.org/svnroot/solid/evgen/BH/readme
 
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* LPAIR
 
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** used by the experiments at DESY/HERA
 
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* Compton2.0
 
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** BH from photoproduction, used by ZEUS
 
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* GiBUU
 
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** gibuu.hepforge.org
 
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(It may work on neutron also)
 
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GiBUU does a good job with real photons on a proton (or heavier)
 
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target.  It doesn't handle electroproduction as nicely (at least not the
 
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last time I asked the Giessen group).
 
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It is fairly straight forward to generate events, and there USED to be
 
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good examples of input jobcards on the website, but they have been removed
 
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recently while they upgrade.  I'd think the best route is to email them
 
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directly to get the code and also ask for the example jobcards.
 

Latest revision as of 15:38, 7 December 2020

This page has been moved to https://solid.jlab.org/wiki/index.php/TCS in the new SoLID Wiki. Please do not edit this page.

link back to dilepton wiki https://hallaweb.jlab.org/wiki/index.php/Dilepton

Introduction

TCS (timelike Compton Scattering)

meeting in 2013

Theory

https://www.dropbox.com/sh/lw7iyajs277odsp/AABaR0OM0oxEvuP80xnqoetda?dl=0

- Timelike Compton scattering off the proton and generalized parton distributions (unpolarized cross section for TCS off the proton, beam and/or target spin asymmetries, dependence on GPD parametrization). Ref.: M. Boër, M. Guidal and M. Vanderhaeghen, Eur. Phys. J. A 51 (2015) no.8, 103.

https://link.springer.com/article/10.1140%2Fepja%2Fi2015-15103-3

- Timelike Compton scattering off the neutron (calculations for the neutron, comparison to the proton and angular momenta dependence). Ref.: M. Boër, M. Guidal and M. Vanderhaeghen, Eur. Phys. J. A 52 (2016) 33.

https://link.springer.com/article/10.1140%2Fepja%2Fi2016-16033-2

- Timelike Compton scattering: Exclusive photoproduction of lepton pairs (original TCS paper, unpolarized and beam circularly polarized cross sections) E.R. Berger, M. Diehl and B. Pire, Eur. Phys. J.\C 23 (2002) 675.

https://link.springer.com/article/10.1007%2Fs100520200917

- Timelike Compton scattering with a linearly polarized photon beam (linearly polarized beam cross section) A.T. Goritschnig, B. Pire and J. Wagner, Phys. Rev. D 89 (2014) no.9, 094031.

https://journals.aps.org/prd/abstract/10.1103/PhysRevD.89.094031

reference

mixed things

https://www.dropbox.com/sh/v1zd54vx5xhfrjb/AAAmSMb4AhUQNBz0jGE4E6AUa?dl=0

talk

Jakub Wagner, "Timelike Compton Scattering" Friday November 14th 2014, CLAS Coll Meeting [1]

J. Wagner "Timelike Compton Scattering with Transversely Polarized Targets" NPS Collaboration Meeting (JLab, 11/19/14) [2]

more https://www.dropbox.com/sh/5cidea0kdfcomy7/AADcLPiQS2cuDbN3nZwzQZgUa?dl=0

past experiments

CLAS6 TCS

future experiment

CLAS12_TCS (unpolarized)

SoLID_TCS (unpolarized)

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

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

CLAS12 TCS (linearly polarized)

Retrieved from "https://hallaweb.jlab.org/wiki/index.php?title=TCS&oldid=39933"