Proton-proton interactions and onset of deconfinement

Abstract

The NA61/SHINE experiment at the CERN SPS is performing a uniqe study of the phase diagram of strongly interacting matter by varying collision energy and nuclear mass number of colliding nuclei. In central Pb+Pb collisions the NA49 experiment found structures in the energy dependence of several observables in the CERN SPS energy range that had been predicted for the transition to a deconfined phase. New measurements of NA61/SHINE find intriguing similarities in p+p interactions for which no deconfinement transition is expected at SPS energies. Possible implications will be discussed.

References in corpus (38)

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• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
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Cited by in corpus (11)

• Conceptual design of the Spin Physics Detector
• 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
• Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ spectra in ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$
• Chiral phase transition and kaon-to-pion ratios in the entanglement SU(3) PNJL model
• Ratio of cross-sections of kaons to pions produced in $pp$ collisions as a function of $\sqrt{s}$
• Strangeness thermodynamic instabilities in hot and dense nuclear matter
• Search of critical effects in NA61/SHINE
• Heavy-ion physics at the CERN SPS H2: NA35, NA49 and NA61/SHINE (with personal recollections)
• Measurements of $\Xi {\left(1530\right)}^0$ and $\overline{\Xi }{\left(1530\right)}^0$ production in proton-proton interactions at $\sqrt{s_{NN}}$ = 17.3 GeV in the NA61/SHINE experiment
• Hadron production in elementary nucleon-nucleon reactions from low to ultra-relativistic energies