Correlations of two charged identical kaons (K K ) are measured in pp collisions at s 1⁄4 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 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.ThesetrendsaresimilartotheonesobservedforandK0sK0s correlationsinppandheavy- 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.

Charged kaon femtoscopic correlations in pp collisions at sqrt[s]=7  TeV

DE CARO, ANNALISA;DE GRUTTOLA, DANIELE;DE PASQUALE, Salvatore;FUSCO GIRARD, Mario;PAGANO, PAOLA;VIRGILI, Tiziano;
2013

Abstract

Correlations of two charged identical kaons (K K ) are measured in pp collisions at s 1⁄4 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 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.ThesetrendsaresimilartotheonesobservedforandK0sK0s correlationsinppandheavy- 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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/3994264
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