Probing axial quark generalized parton distributions through exclusive photoproduction of a γπ± pair with a large invariant mass (CROSBI ID 255056)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Duplančić, Goran ; Passek-Kumerički, Kornelija ; Pire, Bernard ; Szymanowski, Lech ; Wallon, Samuel
engleski
Probing axial quark generalized parton distributions through exclusive photoproduction of a γπ± pair with a large invariant mass
Exclusive photoproduction of a γπ± pair in the kinematics where the pair has a large invariant mass and the final nucleon has a small transverse momentum is described in the collinear factorization framework. The scattering amplitude is calculated at leading order in αs and the differential cross sections for the process are estimated in the kinematics of the JLab~12-GeV experiments. The order of magnitude of the predicted cross-sections seems sufficient for a dedicated experiment to be performed. The process turns out to be very sensitive to the axial generalized parton distribution combination H̃u−H̃d.
generalized parton distributions (GPD) ; exclusive photoproduction
arXiv: 1809.08104
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
11
2018.
179
44
objavljeno
1126-6708
1029-8479
10.1007/JHEP11(2018)179
