Paramaterizations of inclusive cross sections for pion production in proton-proton collisions. II. Comparison to new data

Abstract

A set of new, precise data have recently been made available by the NA49 collaboration for charged pion production in proton-proton and proton-Carbon reactions at 158 GeV. The current paper compares this new data to five currently available arithmetic parameterizations. Although a precise fit is not expected, two of the parameterizations do not work very well but the other three are able to provide a moderately good, but not precise fit to the proton-proton data. The best two of these three parameterizations are scaled to the proton-Carbon data and again provide a moderately good, but not precise fit.

arXiv comment11 pages, 13 figures, Accepted for publication in Physical Review D

References in corpus (15)

• Suppression of Hadrons with Large Transverse Momentum in Central Au+Au Collisions at $sqrt {s sub {sub {NN}}}_ = 130 GeV
• Energy spectra of gamma-rays, electrons and neutrinos produced at proton-proton interactions in the very high energy regime
• Parameterization of Gamma, e^+/- and Neutrino Spectra Produced by p-p Interaction in Astronomical Environment
• Forward Neutral Pion Production in p+p and d+Au Collisions at sqrt(s_NN)=200 GeV
• Recent results in relativistic heavy ion collisions: from ``a new state of matter'' to "the perfect fluid"
• Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum
• High energy gamma-ray emission from the starburst nucleus of NGC 253
• Nuclear Effects on Hadron Production in d+Au and p+p Collisions at sqrt(s_NN)=200 GeV
• Indications of suppressed high p_T hadron production in nucleus-nucleus collisions at CERN-SPS
• Parametrizations of Inclusive Cross Sections for Pion Production in Proton-Proton Collisions
• Diffractive Interaction and Scaling Violation in pp->pi^0 Interaction and GeV Excess in Galactic Diffuse Gamma-Ray Spectrum of EGRET
• High pT leading hadron suppression in nuclear collisions at sqrt(s_NN) = 20 -- 200 GeV: data versus parton energy loss models
• Relevance of baseline hard proton-proton spectra for high-energy nucleus-nucleus physics
• Fermi motion and nuclear modification factor
• Neutron halo and the impact-parameter dependence of the ${\pi }^{+}-{\pi }^{-}$ asymmetry in heavy ion collisions

Cited by in corpus (1)

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