Average transverse momentum of hadrons in proton-nucleus collisions in the wounded nucleon model

Abstract

In the wounded nucleon model, a proton-nucleus (p+A) collision is a superposition of independent nucleon-nucleon collisions. We use this model to calculate the average transverse momentum of pions, kaons and protons in high energy p+A collisions. For the same number of produced particles, because the number of participants differs, in the wounded nucleon model the transverse momentum of hadrons can differ between p+p and p+A collisions. In this model we find that the average transverse momentum in high multiplicity p+A collisions depends weakly on the number of produced particles, and underestimates the preliminary experimental data at the LHC. The difference is small for pions and greater for kaons and protons. The magnitude of this difference is consistent with hydrodynamic expectations.

8 pages, 3 figures; discussion on d-Au added

References in corpus (16)

• Observation of long-range near-side angular correlations in proton-lead collisions at the LHC
• Multiplicity and transverse-momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
• Initial state geometry and the role of hydrodynamics in proton-proton, proton-nucleus and deuteron-nucleus collisions
• Collective dynamics of the high-energy proton-nucleus collisions
• Correlations from hydrodynamic flow in p-Pb collisions
• Study of the inclusive production of charged pions, kaons, and protons in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV
• Explanation of systematics of CMS p+Pb high multiplicity di-hadron data at ${\sqrt{s}}_{\mathrm{NN}}=5.02$ TeV
• Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_NN)=200 GeV
• Evidence for BFKL and saturation dynamics from di-hadron spectra at the LHC
• The PHOBOS Glauber Monte Carlo
• Eccentricity fluctuation effects on elliptic flow in relativistic heavy ion collisions
• Elliptic and triangular flow anisotropy in deuteron-gold collisions at RHIC and proton-lead collisions at the LHC
• Nuclear Effects on Hadron Production in d+Au and p+p Collisions at sqrt(s_NN)=200 GeV
• Transverse Momentum of Protons, Pions and Kaons in High Multiplicity pp and pA Collisions: Evidence for the Color Glass Condensate?
• Wounded quarks and diquarks in high energy collisions
• Size of the emission source and collectivity in ultra-relativistic p-Pb collisions

Cited by in corpus (10)

• Elliptic and triangular flow in p+Pb and peripheral Pb+Pb collisions from parton scatterings
• Multiplicity dependence of the average transverse momentum in pp, p-Pb, and Pb-Pb collisions at the LHC
• Long-range azimuthal correlations in proton-proton and proton-nucleus collisions from the incoherent scattering of partons
• The rapidity dependence of the average transverse momentum in p+Pb collisions at the LHC: the Color Glass Condensate versus hydrodynamics
• Decisive test of color coherence in proton-nucleus collisions at the LHC
• Hydrodynamic approach to p-Pb
• Particle multiplicities in the central region of high-energy collisions from $k_T$-factorization with running coupling corrections
• Collective flow in small systems
• Multiple Parton Interactions with ALICE: from pp to p-Pb
• Hydrodynamic models of particle production