English

Azimuthal asymmetry in SIDIS off nuclei as probe for $\hat q$

High Energy Physics - Phenomenology 2013-05-30 v1

Abstract

The energy loss parameter q^\hat q is one of the fundamental transport parameters of hadronic matter. Using the twist-4 collinear approach, we show that the cosϕ\cos \phi azimuthal asymmetry in unpolarized semi-inclusive deeply inelastic scattering (SIDIS) off a large nucleus at intermediate transverse momentum is a sensitive observable for its determination. The effect is due to the suppression of the azimuthal asymmetry by final-state multiple scattering.

Keywords

Cite

@article{arxiv.1111.1633,
  title  = {Azimuthal asymmetry in SIDIS off nuclei as probe for $\hat q$},
  author = {Jian-Hua Gao and Andreas Schäfer and Jian Zhou},
  journal= {arXiv preprint arXiv:1111.1633},
  year   = {2013}
}

Comments

9 pages