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Measuring (KSK +/-)-K-0 interactions using Pb-Pb collisions at √sNN=2.76 TeV (CROSBI ID 246292)

Prilog u časopisu | Pismo (znanstveno) | međunarodna recenzija

(ALICE Collaboration) Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... et al. Measuring (KSK +/-)-K-0 interactions using Pb-Pb collisions at √sNN=2.76 TeV // Physics letters. B, 774 (2017), 64-77. doi: 10.1016/j.physletb.2017.09.009

Podaci o odgovornosti

Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Utrobičić, Antonija ; ... ; Vicković, Linda ; ... ; Zou, S.

ALICE Collaboration

engleski

Measuring (KSK +/-)-K-0 interactions using Pb-Pb collisions at √sNN=2.76 TeV

We present the first ever measurements of femtoscopic correlations between the K0S and K± particles. The analysis was performed on the data from Pb–Pb collisions at √sNN = 2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for K0SK− are found to be equal within the experimental uncertainties to those for K0SK+. Comparing the results of the present study with those from published identical-kaon femtoscopic studies by ALICE, mass and coupling parameters for the a0 resonance are tested. Our results are also compatible with the interpretation of the a0 having a tetraquark structure instead of that of a diquark.

kaon ; Pb-Pb ; femtoscopy

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Podaci o izdanju

774

2017.

64-77

objavljeno

0370-2693

1873-2445

10.1016/j.physletb.2017.09.009

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Fizika

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