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Measuring KS 0K± interactions using Pb–Pb collisions at sNN=2.76 TeV

Acharya, S; Adamova, D.; Adolfsson, Jonatan LU ; Aggarwal, M.M; Aglieri Rinella, G; Agnello, M.; Christiansen, Peter LU ; Ljunggren, Martin LU ; Oskarsson, Anders LU and Silvermyr, David LU , et al. (2017) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 774. p.64-77
Abstract
We present the first ever measurements of femtoscopic correlations between the KS 0 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 KS 0K− are found to be equal within the experimental uncertainties to those for KS 0K+. 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... (More)
We present the first ever measurements of femtoscopic correlations between the KS 0 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 KS 0K− are found to be equal within the experimental uncertainties to those for KS 0K+. 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. © 2017 The Author (Less)
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Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
774
pages
14 pages
publisher
Elsevier
external identifiers
  • scopus:85033725022
  • wos:000414973200011
ISSN
0370-2693
DOI
10.1016/j.physletb.2017.09.009
language
English
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yes
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412f34f2-3838-46a9-ad0d-e072a7aeced8
date added to LUP
2017-11-24 08:27:24
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2018-05-29 12:28:36
@article{412f34f2-3838-46a9-ad0d-e072a7aeced8,
  abstract     = {We present the first ever measurements of femtoscopic correlations between the KS 0 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 KS 0K− are found to be equal within the experimental uncertainties to those for KS 0K+. 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. © 2017 The Author},
  author       = {Acharya, S and Adamova, D. and Adolfsson, Jonatan and Aggarwal, M.M and Aglieri Rinella, G and Agnello, M. and Christiansen, Peter and Ljunggren, Martin and Oskarsson, Anders and Silvermyr, David and Stenlund, Evert and Vislavicius, Vytautas and , },
  issn         = {0370-2693},
  language     = {eng},
  pages        = {64--77},
  publisher    = {Elsevier},
  series       = {Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {Measuring KS 0K± interactions using Pb–Pb collisions at sNN=2.76 TeV},
  url          = {http://dx.doi.org/10.1016/j.physletb.2017.09.009},
  volume       = {774},
  year         = {2017},
}