% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Acharya:356861,
      author       = {Acharya, Shreyasi and others},
      title        = {{I}nvestigating the composition of the ${K}_0^⁎(700)$
                      state with $π±{K}_{S}^0$ correlations at the {LHC}},
      journal      = {Physics letters / B},
      volume       = {856},
      issn         = {0031-9163},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ.},
      reportid     = {GSI-2025-00244, arXiv:2312.12830. CERN-EP-2023-287},
      pages        = {138915 -},
      year         = {2024},
      note         = {Phys. Lett. B 856 (2024) 138915. 24 pages, 4 captioned
                      figures, 4 tables, authors from page 18, published version,
                      figures at http://alice-publications.web.cern.ch/node/10644.
                      Funded by SCOAP³. This is an open access article under the
                      CC BY license
                      (http://creativecommons.org/licenses/by/4.0/).},
      abstract     = {The first measurements of femtoscopic correlations with the
                      particle pair combinations $π±K_S^0$ in pp collisions at
                      $\sqrt{s}$ =13 TeV at the Large Hadron Collider (LHC) are
                      reported by the ALICE experiment. Using the femtoscopic
                      approach, it is shown that it is possible to study the
                      elusive $K_0^⁎(700)$ particle that has been considered a
                      tetraquark candidate for over forty years. Source and
                      final-state interaction parameters are extracted by fitting
                      a model assuming a Gaussian source to the experimentally
                      measured two-particle correlation functions. The final-state
                      interaction in the $π±K_S^0$ system is modeled through a
                      resonant scattering amplitude, defined in terms of a mass
                      and a coupling parameter, The extracted mass and
                      Breit–Wigner width, derived from the coupling parameter,
                      of the final-state interaction are found to be consistent
                      with previous measurements of the $K_0^⁎(700)$. The small
                      value and increase of the correlation strength with
                      increasing source size support the hypothesis that the
                      $K_0^⁎(700)$ is a four-quark state, i.e. a tetraquark
                      state of the form $(q_1,q_2^-,q_3,q_3^-)$ in which $q_1$,
                      $q_2$ and $q_3$ indicate the flavor of the valence quarks of
                      the $π$ and $K_S^0$. This latter trend is also confirmed
                      via a simple geometric model that assumes a tetraquark
                      structure of the $K_0^⁎(700)$ resonance.},
      keywords     = {p p: colliding beams (INSPIRE) / correlation function:
                      two-particle (INSPIRE) / scattering amplitude: resonance
                      (INSPIRE) / p p: scattering (INSPIRE) / K*(892) (INSPIRE) /
                      resonance: exotic (INSPIRE) / model: geometrical (INSPIRE) /
                      tetraquark (INSPIRE) / CERN LHC Coll (INSPIRE) / correlation
                      (INSPIRE) / final-state interaction (INSPIRE) / ALICE
                      (INSPIRE) / structure (INSPIRE) / mass: width (INSPIRE) /
                      Breit-Wigner (INSPIRE) / experimental results (INSPIRE) /
                      13000 GeV-cms (INSPIRE)},
      cin          = {ALI / DTL / CIT / EXM / ALICE@CERN},
      ddc          = {530},
      cid          = {I:(DE-Ds200)ALI-20080822OR105 /
                      I:(DE-Ds200)DTL-20051214OR031 /
                      I:(DE-Ds200)CIT-20110310OR121 /
                      I:(DE-Ds200)EXM-20080818OR100 / I:(DE-Ds200)Coll-CERN-ALICE},
      pnm          = {612 - Cosmic Matter in the Laboratory (POF4-612) / HGS-HIRe
                      - HGS-HIRe for FAIR (HGS-HIRe) / SUC-GSI-Heidelberg -
                      Strategic university cooperation GSI-U Heidelberg
                      (SUC-GSI-HE) / SUC-GSI-Frankfurt - Strategic university
                      cooperation GSI-U Frankfurt/M (SUC-GSI-FR) /
                      SUC-GSI-Darmstadt - Strategic university cooperation GSI-TU
                      Darmstadt (SUC-GSI-DA) / STRONG-2020 - The strong
                      interaction at the frontier of knowledge: fundamental
                      research and applications (824093) / DFG project
                      G:(GEPRIS)491382106 - Open-Access-Publikationskosten /
                      2025-2027 / GSI Helmholtzzentrum für Schwerionenforschung
                      (491382106)},
      pid          = {G:(DE-HGF)POF4-612 / G:(DE-Ds200)HGS-HIRe /
                      G:(DE-Ds200)SUC-GSI-HE / G:(DE-Ds200)SUC-GSI-FR /
                      G:(DE-Ds200)SUC-GSI-DA / G:(EU-Grant)824093 /
                      G:(GEPRIS)491382106},
      experiment   = {EXP:(DE-H253)LHC-Exp-ALICE-20150101},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {2312.12830},
      howpublished = {arXiv:2312.12830},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2312.12830;\%\%$},
      UT           = {WOS:001381469300001},
      doi          = {10.1016/j.physletb.2024.138915},
      url          = {https://repository.gsi.de/record/356861},
}