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Measuring KS0 K± interactions using pp collisions at √s = 7 TeV

Acharya, S.
•
Acosta, F. T.
•
Adamová, D.
altro
Zmeskal, J.
2019
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
We present the first measurements of femtoscopic correlations between the K0 and K± particles in pp collisions at √s = 7 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely 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 K0K+. Results of the present study are compared with those from identical-kaon femtoscopic studies also performed with pp collisions at √s = 7 TeV by ALICE and with a K0S K± measurement in Pb–Pb collisions at √sNN = 2.76 TeV. Combined with the Pb–Pb results, our pp analysis is found to be compatible with the interpretation of the a0(980) having a tetraquark structure instead of that of a diquark.
DOI
10.1016/j.physletb.2018.12.033
WOS
WOS:000460118200002
Archivio
http://hdl.handle.net/11368/2936512
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85059933311
https://www.sciencedirect.com/science/article/pii/S0370269318309602
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/2936512/1/PLB_790(2019)22-34.pdf
Soggetti
  • Nuclear and High Ener...

Web of Science© citazioni
9
Data di acquisizione
Mar 27, 2024
Visualizzazioni
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Data di acquisizione
Apr 19, 2024
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