Gluon poles and photon distribution amplitudes in Drell-Yan-like processes
arXiv:1804.05016 · doi:10.1140/epja/i2018-12568-4
Abstract
We calculate the hadron tensor related to the photon-induced Drell-Yan process, with incoming nucleon being transversally polarised. We predict the new single spin asymmetry which probes gluon poles and which is expressed in terms of photon (both chiral-odd and chiral-even) distribution amplitudes and chiral-odd nucleon function stemming from the nucleon transverse polarization.
6 pages, 3 figures; Appendix has been added
References in corpus (9)
- Transverse momentum dependent (TMD) parton distribution functions: status and prospects
- Dilepton production from polarized hadron hadron collisions
- An Observation Concerning the Process Dependence of the Sivers Functions
- Probing the nucleon's transversity and the photon's distribution amplitude in lepton pair photoproduction
- On a possible node in the Sivers and Qiu-Sterman functions
- New contributions to gluon poles in direct photon production
- Drell-Yan hadron tensor: contour gauge and gluon propagator
- Constraining gluon poles
- Drell-Yan-like processes and duality