Measurements of π±, K±, p and p¯ spectra in 40Ar+45Sc collisions at 13A to 150A GeV/c


Adhikary H., Adrich P., Allison K., Amin N., Andronov E., Antićić T., ...Daha Fazla

European Physical Journal C, cilt.84, sa.4, 2024 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 84 Sayı: 4
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1140/epjc/s10052-024-12602-2
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals, Nature Index
  • Marmara Üniversitesi Adresli: Hayır

Özet

The NA61/SHINE experiment at the CERN Super Proton Synchrotron studies the onset of deconfinement in strongly interacting matter through a beam energy scan of particle production in collisions of nuclei of varied sizes. This paper presents results on inclusive double-differential spectra, transverse momentum and rapidity distributions and mean multiplicities of π±, K±, p and p¯ produced in 40Ar+45Sc collisions at beam momenta of 13A, 19A, 30A, 40A, 75A and 150A GeV/c. The analysis uses the 10% most central collisions, where the observed forward energy defines centrality. The energy dependence of the K±/π± ratios as well as of inverse slope parameters of the K± transverse mass distributions are placed in between those found in inelastic p+p and central Pb + Pb collisions. The results obtained here establish a system-size dependence of hadron production properties that so far cannot be explained either within statistical or dynamical models.