Charged kaon femtoscopic correlations in pp collisions at root s=7 TeV

B. Abelev, J. Adam, D. Adamova, A.M. Adare, M.M. Aggarwal, Ian Bearden, Hans Bøggild, Christian Holm Christensen, Hans Hjersing Dalsgaard, Kristjan Herlache Gulbrandsen, Ante Bilandzic, Jens Jørgen Gaardhøje, Alexander Colliander Hansen, Børge Svane Nielsen, Casper Nygaard, Carsten Søgaard

25 Citationer (Scopus)

Abstract

Correlations of two charged identical kaons (KchKch) are measured in pp collisions at √s=7 TeV by the ALICE experiment at the Large Hadron Collider (LHC). One-dimensional KchKch correlation functions are constructed in three multiplicity and four transverse momentum ranges. The KchKch femtoscopic source parameters R and λ are extracted. The KchKch correlations show a slight increase of femtoscopic radii with increasing multiplicity and a slight decrease of radii with increasing transverse momentum. These trends are similar to the ones observed for ππ and Ks0Ks0 correlations in pp and heavy-ion collisions. However at high multiplicities, there is an indication that the one-dimensional correlation radii for charged kaons are larger than those for pions in contrast to what was observed in heavy-ion collisions at the Relativistic Heavy-Ion Collider.

OriginalsprogEngelsk
Artikelnummer052016
TidsskriftPhysical Review D (Particles, Fields, Gravitation and Cosmology)
Vol/bind87
Udgave nummer5
ISSN1550-7998
DOI
StatusUdgivet - 25 mar. 2013

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