Nuclear Parton Distributions and Applications to Drell-Yan and anti-neutrino Scattering

28 Apr 2015, 14:50
25m
FORUM ()

FORUM

WG1 Structure Functions and Parton Densities WG1 Structure Functions and Parton Densities

Speakers

Roberto Petti (University of South Carolina (US))Dr Sergey Kulagin (INR)

Description

We study the nuclear parton distribution functions [1] on the basis of our recently developed semi-microscopic model [2], which takes into account a number of nuclear effects including nuclear shadowing, Fermi motion and nuclear binding, nuclear meson-exchange currents and off-shell corrections to bound nucleon distributions. We discuss in details the dependencies of nuclear effects on the type of parton distribution (nuclear sea vs. valence) as well as on the parton flavour (isospin). We apply the resulting nuclear parton distributions to calculate ratios of cross sections for proton-induced Drell-Yan production off different nuclear targets. We obtain a good agreement on the magnitude, target and projectile x and the dimuon mass dependence of proton-nucleus Drell-Yan process data from the E772 [3] and E866 [4] experiments at Fermilab. We also provide nuclear corrections for the Drell-Yan data from the E605 experiment. [1] S.A.Kulagin and R.Petti, Phys. Rev. C 90 (2014) 4, 045204
[2] S.A.Kulagin and R.Petti, Nucl. Phys. A 765 (2006) 126; Phys. Rev. D 76 (2007) 094023; Phys. Rev. C 82 (2010) 054614
[3] D.M. Alde et al., Phys. Rev. Lett. 64 (1990) 2479
[4] M.A. Vasilev et al., Phys. Rev. Lett. 83 (1999) 2304

Primary authors

Roberto Petti (University of South Carolina (US)) Dr Sergey Kulagin (INR)

Presentation Materials