TCS

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

Introduction

TCS (timelike Compton Scattering)

meeting in 2013

• 2013/04/17
  • https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_20150417.pptx
  • https://userweb.jlab.org/~zwzhao/TCS/talk/TCS_20150417.pdf
• 2013/04/10
  • pdf Boer Marie
• 2013/04/3
  • pdf Boer Marie
• 2013/03/28
  • Zhiwen Zhao pptx pdf
• 2013/03/13
  • Zhiwen Zhao pptx pdf
  • Rafayel [1]
• 2013/03/06 Zhiwen Zhao pptx pdf
• 2013/02/20 Zhiwen Zhao pptx pdf

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 [2]

J. Wagner "Timelike Compton Scattering with Transversely Polarized Targets" NPS Collaboration Meeting (JLab, 11/19/14) [3]

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

past experiments

[4]

future experiment

CLAS12_TCS (unpolarized)

• TCS (E12-12-001) at CLAS12, approved 120 days, rated A-, Submission at PAC 39

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

• 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