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arXiv · 1401.6625

Hadron Multiplicities in p+p and p+Pb Collisions

Hongmin Wang·Zhao-Yu Hou·Xian-Jing Sun
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Abstract

Experiments at the Large Hadron Collider (LHC) have measured multiplicity distributions in p+p and p+Pb collisions at a new domain of collision energy. Based on considering an energy-dependent broadening of the nucleon's density distribution, charged hadron multiplicities are studied with the phenomenological saturation model and the evolution equation dependent saturation model. By assuming the saturation scale have a small dependence on the 3-dimensional root mean square (rms) radius at different energy, the theoretical results are in good agreement with the experimental data from CMS and ALICE collaboration. Then, the predictive results in p+p collisions at $\sqrt{s}=$ 14 TeV of the LHC are also given.

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Hongmin Wang, Zhao-Yu Hou, Xian-Jing Sun. 2014-01-26. Hadron Multiplicities in p+p and p+Pb Collisions. https://arxiv.org/abs/1401.6625

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