One-dimensional charged kaon femtoscopy in p-Pb collisions at s NN = 5.02 TeV

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Abstract

The correlations of identical charged kaons were measured in p-Pb collisions at sNN=5.02 TeV by the ALICE experiment at the LHC. The femtoscopic invariant radii and correlation strengths were extracted from one-dimensional kaon correlation functions and were compared with those obtained in pp and Pb-Pb collisions at s=7 TeV and sNN=2.76 TeV, respectively. The presented results also complement the identical-pion femtoscopic data published by the ALICE collaboration. The extracted radii increase with increasing charged-particle multiplicity and decrease with increasing pair transverse momentum. At comparable multiplicities, the radii measured in p-Pb collisions are found to be close to those observed in pp collisions. The obtained femtoscopic parameters are reproduced by the EPOS 3 hadronic interaction model and disfavor models with large initial size or strong collective expansion at low multiplicities. © 2019 CERN.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Variable Energy Cyclotron Centre
  • University of Brescia
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
Originalspråkengelska
Artikelnummer024002
TidskriftPhysical Review C
Volym100
Utgåva nummer2
StatusPublished - 2019
PublikationskategoriForskning
Peer review utfördJa