System size and energy dependence of proton rapidity spectra from NA61/SHINE at the CERN SPS

Abstract

NA61/SHINE is an experiment at the CERN Super Proton Synchrotron. The main goals of the experiment are the search for the critical point of strongly interacting matter and the study of the properties of the onset of deconfinement. To reach these goals, the two-dimensional scan in beam momentum ($13A-150A$ GeV/$c$) and system size ($p$+$p$, Be+Be, Ar+Sc, Xe+La, Pb+Pb) was performed. In the final stage of the collision, the spectra of protons are only weakly affected by the effects of resonance decays and rescattering due to their large mass. Thus, proton rapidity distribution is particularly sensitive to the onset of deconfinement. This article presents experimental results on proton production in the collision energy range, which is most relevant to the onset of deconfinement. The procedure of measuring the proton rapidity spectra by NA61/SHINE is described, as well as Collaboration's recent results from reactions of $p$+$p$, Be+Be and Ar+Sc. Presented experimental results are confronted with existing data and models.

References in corpus (9)

• Parton-Hadron-String Dynamics: an off-shell transport approach for relativistic energies
• Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions
• NA61/SHINE facility at the CERN SPS: beams and detector system
• Measurements of ${\pi }^{\pm }$, K${}^{\pm }$, p and $\bar{\text{p}}$ spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS
• Measurement of negatively charged pion spectra in inelastic p+p interactions at $p_{lab}$ = 20, 31, 40, 80 and 158 GeV/c
• Particle Production via Strings and Baryon Stopping within a Hadronic Transport Approach
• Baryon Stopping in Heavy-Ion Collisions at E_{lab}= 2--160 GeV/nucleon
• 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
• Measurements of ${\pi }^{-}$ production in ${}^7$Be+${}^9$Be collisions at beam momenta from 19$A$ to 150$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS

Cited by in corpus (2)

• Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ spectra in ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$
• On Extracting Thermal Parameters and Scenario in High-Energy Collisions