KS0KS0 and KS0K± femtoscopy in pp collisions at s=5.02 and 13 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2022.137335

K_S⁰K_S⁰ and K_S⁰K^± femtoscopy in pp collisions at s=5.02 and 13 TeV

ALICE Collaboration

Sección de Física

Variable Energy Cyclotron Centre India
Czech Academy of Sciences
Goethe University Frankfurt
University of Lund
CERN
Sezione INFN
National Institute for Nuclear Physics
Department of Physics Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
Indonesian Institute of Sciences
Russian Research Centre Kurchatov Institute
GSI Helmholtzzentrum für Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
St. Petersburg State University
National Institute for Physics and Nuclear Engineering
National Institute for Subatomic Physics
University of Münster
Ruprecht-Karls-Universität Heidelberg
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Yale University
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
CNRS-IN2P3
AGH University of Krakow
Bose Institute
University of Catania
Technical University of Munich
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Université Clermont Auvergne
University of Liverpool
Joint Institute for Nuclear Research
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Moscow Engineering Physics Institute
Petersburg Nuclear Physics Institute (PNPI)
Institute of Space Science (ISS)
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
Moscow Institute for Physics and Technology
University of Pavia
Oak Ridge National Laboratory
Inha University
Università di Brescia
Universidade de São Paulo
Sezione INFN
Polytechnic University of Bari
Russian Federal Nuclear Center (VNIIEF)
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
University of Kansas
Pontifical Catholic Univ. of Peru
Universidad Autonoma de Sinaloa
Benemérita Universidad Autónoma de Puebla
Homi Bhabha National Institute
Université de Lyon
Universidade Estadual de Campinas
University of Tsukuba
University of Cape Town
University of Birmingham
Université Grenoble Alpes
Università del Piemonte Orientale and Gruppo Collegato INFN
Universidade Federal do ABC
Frankfurt Institute for Advanced Studies
Warsaw University of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
RAS - Institute for Nuclear Research
Panjab University
Comenius University
University of Zagreb
Institute for High Energy Physics
Chicago State University
National Nuclear Research Center
Universidade Federal do Rio Grande do Sul
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
Institute for Subatomic Physics of Utrecht University
A. I. Alikhanyan National Science Laboratory (YereVan Physics Institute) Foundation
Tokyo University
Rheinische Friedrich-Wilhelms-Universität Bonn
Western Norway University of Applied Sciences
Centro de Investigación y de Estudios AVanzados (CINVESTAV)
Yonsei University
Creighton University
University of Jyväskylä
Ohio State University
Technical University of Košice
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
Jeonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Centre for Nuclear Studies
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
University of Messina
Università degli Studi di Foggia
University of Helsinki
National University of Science and Technology POLITEHNICA Bucharest
Chungbuk National University
Hiroshima University
Budker Institute for Nuclear Physics
University of Rajasthan
Eberhard Karls Universität Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Femtoscopic correlations with the particle pair combinations K_S⁰K_S⁰ and K_S⁰K^± are studied in pp collisions at s=5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the K_S⁰K_S⁰ analysis includes quantum statistics and strong final-state interactions through the f₀(980) and a₀(980) resonances. The model used for the K_S⁰K^± analysis includes only the final-state interaction through the a₀ resonance. Source parameters extracted in the present work are compared with published values from pp collisions at s=7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the K_S⁰K_S⁰ correlations is significantly greater than the strength of the K_S⁰K^± correlations, the new results are compatible with the a₀ resonance being a tetraquark state of the form (q₁,q₂‾,s,s‾), where q₁ and q₂ are u or d quarks.

Original language	English
Article number	137335
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	833
DOIs	https://doi.org/10.1016/j.physletb.2022.137335
State	Published - 10 Oct 2022

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10.1016/j.physletb.2022.137335

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@article{b9dd5f5d55c9429995bcbcaa50af9a3d,

title = "KS0KS0 and KS0K± femtoscopy in pp collisions at s=5.02 and 13 TeV",

abstract = "Femtoscopic correlations with the particle pair combinations KS0KS0 and KS0K± are studied in pp collisions at s=5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the KS0KS0 analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the KS0K± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at s=7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the KS0KS0 correlations is significantly greater than the strength of the KS0K± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1,q2‾,s,s‾), where q1 and q2 are u or d quarks.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and Z. Akbar and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and A. Andronic and M. Angeletti and V. Anguelov and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 European Organization for Nuclear Research, ALICE",

year = "2022",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2022.137335",

language = "English",

volume = "833",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

}

TY - JOUR

T1 - KS0KS0 and KS0K± femtoscopy in pp collisions at s=5.02 and 13 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andronic, A.

AU - Angeletti, M.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2022/10/10

Y1 - 2022/10/10

N2 - Femtoscopic correlations with the particle pair combinations KS0KS0 and KS0K± are studied in pp collisions at s=5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the KS0KS0 analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the KS0K± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at s=7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the KS0KS0 correlations is significantly greater than the strength of the KS0K± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1,q2‾,s,s‾), where q1 and q2 are u or d quarks.

AB - Femtoscopic correlations with the particle pair combinations KS0KS0 and KS0K± are studied in pp collisions at s=5.02 and 13 TeV by the ALICE experiment. At both energies, boson source parameters are extracted for both pair combinations, by fitting models based on Gaussian size distributions of the sources, to the measured two-particle correlation functions. The interaction model used for the KS0KS0 analysis includes quantum statistics and strong final-state interactions through the f0(980) and a0(980) resonances. The model used for the KS0K± analysis includes only the final-state interaction through the a0 resonance. Source parameters extracted in the present work are compared with published values from pp collisions at s=7 TeV and the different pair combinations are found to be consistent. From the observation that the strength of the KS0KS0 correlations is significantly greater than the strength of the KS0K± correlations, the new results are compatible with the a0 resonance being a tetraquark state of the form (q1,q2‾,s,s‾), where q1 and q2 are u or d quarks.

UR - https://www.scopus.com/pages/publications/85135702560

U2 - 10.1016/j.physletb.2022.137335

DO - 10.1016/j.physletb.2022.137335

M3 - Article

AN - SCOPUS:85135702560

SN - 0370-2693

VL - 833

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 137335

ER -

K_S⁰K_S⁰ and K_S⁰K^± femtoscopy in pp collisions at s=5.02 and 13 TeV

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