Identical neutral kaon pair correlations are measured in root s = 7 TeV pp collisions in the ALICE experiment. One-dimensional (KsKs0)-K-0 correlation functions in terms of the invariant momentum difference of kaon pairs are formed in two multiplicity and two transverse momentum ranges. The femtoscopic parameters for the radius and correlation strength of the kaon source are extracted. The fit includes quantum statistics and final-state interactions of the a(0)/f(0) resonance. (KsKs0)-K-0 correlations show an increase in radius for increasing multiplicity and a slight decrease in radius for increasing transverse mass, mT, as seen in pi pi correlations in pp collisions and in heavy-ion collisions. Transverse mass scaling is observed between the (KsKs0)-K-0 and pi pi radii. Also, the first observation is made of the decay of the f(2)'(1525) meson into the (KsKs0)-K-0 channel in pp collisions.

B. Abelev, J. Adam, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2012). K^0_s K^0_s correlations in pp collisions at sqrt(s) = 7 TeV from the LHC ALICE experiment. PHYSICS LETTERS. SECTION B, 717, 151-161 [10.1016/j.physletb.2012.09.013].

K^0_s K^0_s correlations in pp collisions at sqrt(s) = 7 TeV from the LHC ALICE experiment

AGOSTINELLI, ANDREA;A. Alici;ARCELLI, SILVIA;BASILE, MAURIZIO;BELLINI, FRANCESCA;CIFARELLI, LUISA;GUERZONI, BARBARA;SCIOLI, GILDA;
2012

Abstract

Identical neutral kaon pair correlations are measured in root s = 7 TeV pp collisions in the ALICE experiment. One-dimensional (KsKs0)-K-0 correlation functions in terms of the invariant momentum difference of kaon pairs are formed in two multiplicity and two transverse momentum ranges. The femtoscopic parameters for the radius and correlation strength of the kaon source are extracted. The fit includes quantum statistics and final-state interactions of the a(0)/f(0) resonance. (KsKs0)-K-0 correlations show an increase in radius for increasing multiplicity and a slight decrease in radius for increasing transverse mass, mT, as seen in pi pi correlations in pp collisions and in heavy-ion collisions. Transverse mass scaling is observed between the (KsKs0)-K-0 and pi pi radii. Also, the first observation is made of the decay of the f(2)'(1525) meson into the (KsKs0)-K-0 channel in pp collisions.
2012
B. Abelev, J. Adam, D. Adamová, A.M. Adare, M.M. Aggarwal, G. Aglieri Rinella, et al. (2012). K^0_s K^0_s correlations in pp collisions at sqrt(s) = 7 TeV from the LHC ALICE experiment. PHYSICS LETTERS. SECTION B, 717, 151-161 [10.1016/j.physletb.2012.09.013].
B. Abelev;J. Adam;D. Adamová;A.M. Adare;M.M. Aggarwal;G. Aglieri Rinella;A.G. Agocs;A. Agostinelli;S. Aguilar Salazar;Z. Ahammed;A. Ahmad Masoodi;N. A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/142521
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