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TCS (timelike Compton Scattering)

meeting in 2013


- 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.

- 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.

- 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.

- 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.


mixed things


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]


past experiments


future experiment

CLAS12_TCS (unpolarized)

SoLID_TCS (unpolarized)


2013/03 SoLID Collbration meeting update by Zhiwen Zhao pptxpdf


draft in updating

working directory (any one can read and write)


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)