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Journal Articles Physical Review D Year : 2013

Charged kaon femtoscopic correlations in pp collisions at $\sqrt{s}=7$ TeV

B. Abelev
  • Function : Author
J. Faivre
  • Function : Author
C. Roy
Laurent Aphecetche
Guillaume Batigne
B. Erazmus
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  • IdRef : 033726485
Magali Estienne
Marie Germain
Philippe Pillot
Alexandre Shabetai
Diego Stocco
B. Cheynis
Maxime Guilbaud


Correlations of two charged identical kaons (Kch Kch) are measured in pp collisions at sqrt{s}=7 TeV by the ALICE experiment at the Large Hadron Collider (LHC). One-dimensional Kch Kch correlation functions are constructed in three multiplicity and four transverse momentum ranges. The Kch Kch femtoscopic source parameters R and lambda are extracted. The Kch Kch 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 pi pi and Ks0 Ks0 correlations in pp and heavy-ion collisions. However, the observed one dimensional correlation radii for charged kaons are larger at high multiplicities than those for pions in contrast to what was observed in heavy-ion collisions at RHIC.

Dates and versions

in2p3-00769524 , version 1 (02-01-2013)



B. Abelev, N. Arbor, G. Conesa Balbastre, J. Faivre, C. Furget, et al.. Charged kaon femtoscopic correlations in pp collisions at $\sqrt{s}=7$ TeV. Physical Review D, 2013, 87, pp.052016. ⟨10.1103/PhysRevD.87.052016⟩. ⟨in2p3-00769524⟩
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