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arXiv · 1612.02899

Probing cold nuclear matter effects with weak gauge boson production in ultra-relativistic heavy-ion collisions

Peng Ru·Ben-Wei Zhang
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Abstract

Within the framework of pQCD, we systematically study the $W^{\pm}/Z^0$ boson production as a probe of cold nuclear matter effects and nuclear parton distributions in p+Pb and Pb+Pb collisions at the LHC and future colliders. A detailed analysis at partonic level is performed. Moreover, with a semi-microscopic KP model of NPDFs, in which several nuclear effects (e.g. Fermi motion and nuclear binding, the off-shell correction, the nuclear coherent correction, and the nuclear meson correction) are included, we study the vector boson rapidity distribution in p+Pb collisions at the LHC, and a very good agreement with the latest data is found, including the $W$-boson charge asymmetry.

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Peng Ru, Ben-Wei Zhang. 2016-12-09. Probing cold nuclear matter effects with weak gauge boson production in ultra-relativistic heavy-ion collisions. https://arxiv.org/abs/1612.02899

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