Multiple scattering effects on heavy meson production in p+A collisions at backward rapidity
Nuclear and High Energy Physics
Nuclear Theory
Physics
QC1-999
FOS: Physical sciences
01 natural sciences
High Energy Physics - Experiment
Nuclear Theory (nucl-th)
High Energy Physics - Phenomenology
High Energy Physics - Experiment (hep-ex)
High Energy Physics - Phenomenology (hep-ph)
0103 physical sciences
Nuclear Experiment (nucl-ex)
Nuclear Experiment
DOI:
10.1016/j.physletb.2014.11.024
Publication Date:
2014-11-21T01:56:43Z
AUTHORS (5)
ABSTRACT
We study the incoherent multiple scattering effects on heavy meson production in the backward rapidity region of p+A collisions within the generalized high-twist factorization formalism. We calculate explicitly the double scattering contributions to the heavy meson differential cross sections by taking into account both initial-state and final-state interactions, and find that these corrections are positive. We further evaluate the nuclear modification factor for muons that come form the semi-leptonic decays of heavy flavor mesons. Phenomenological applications in d+Au collisions at a center-of-mass energy $\sqrt{s}=200$ GeV at RHIC and in p+Pb collisions at $\sqrt{s}=5.02$ TeV at the LHC are presented. We find that incoherent multiple scattering can describe rather well the observed nuclear enhancement in the intermediate $p_T$ region for such reactions.<br/>10 pages, 6 figures, published version in PLB<br/>
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