Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8193321 | Physics Letters B | 2010 | 7 Pages |
Abstract
We derive the forward photoproduction amplitude for the diffractive γpâl+lâp reaction in the momentum space, within the formalism of kâ¥-factorization. Predictions for the γpâl+lâp reaction are given using unintegrated gluon distribution from the literature. We calculate the total cross section as a function of photon-proton center of mass energy and the invariant mass distribution of the lepton pair. We also discuss whether the production of timelike virtual photons can be approximated by continuing to the spacelike domain q2<0. The present calculation provides an input for future predictions for exclusive hadroproduction in the ppâpl+lâp reaction.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
W. Schäfer, G. Ålipek, A. Szczurek,