Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ spectra in ${}^7$Be+${}^9$Be collisions at beam momenta from 19$A$ to 150$A$ GeV/$c$ with the NA61/SHINE spectrometer at the CERN SPS

Abstract

The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) studies the onset of deconfinement in hadron matter by a scan of particle production in collisions of nuclei with various sizes at a set of energies covering the SPS energy range. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ produced in the 20$\%$ most $central$ ${}^7$Be+${}^9$Be collisions at beam momenta of 19$A$, 30$A$, 40$A$, 75$A$ and 150$A$ GeV/$c$. The energy dependence of the $K^{\pm }$/${\pi }^{\pm }$ ratios as well as of inverse slope parameters of the $K^{\pm }$ transverse mass distributions are close to those found in inelastic $p$+$p$ reactions. The new results are compared to the world data on $p$+$p$ and Pb+Pb collisions as well as to predictions of the EPOS, UrQMD, AMPT, PHSD and SMASH models.

52 pages, 38 figures

References in corpus (7)

• Parton transport and hadronization from the dynamical quasiparticle point of view
• GLISSANDO: GLauber Initial-State Simulation AND mOre
• Evolution of transverse flow and effective temperatures in the parton phase from a multi-phase transport model
• Onset of deconfinement in nucleus-nucleus collisions: Review for pedestrians and experts
• Identity Method for the Determination of the Moments of Multiplicity Distributions
• Recent Developments in the Study of Deconfinement in Nucleus-Nucleus Collisions
• Proton-proton interactions and onset of deconfinement

Cited by in corpus (7)

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• Letter of Intent: the NA60+ experiment
• Results on system size dependence of strangeness production in the CERN SPS energy range from NA61/SHINE
• The yield ratio of anti-nuclei and nuclei of relativistic nuclear collisions in the central rapidity region
• System size and energy dependence of proton rapidity spectra from NA61/SHINE at the CERN SPS
• Heavy-ion physics at the CERN SPS H2: NA35, NA49 and NA61/SHINE (with personal recollections)