Journal
PHYSICS LETTERS B
Volume 790, Issue -, Pages 22-34Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2018.12.033
Keywords
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Funding
- Grid centres
- Worldwide LHC Computing Grid (WLCG) collaboration
- A.I. Alikhanyan National Science Laboratory (Yerevan Physics Institute) Foundation (ANSL)
- State Committee of Science and World Federation of Scientists (WFS), Armenia
- Austrian Academy of Sciences and Nationalstiftung fur Forschung, Technologie und Entwicklung, Austria
- Ministry of Communications and High Technologies
- National Nuclear Research Center, Azerbaijan
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Financiadora de Estudos e Projetos (Finep)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Brazil
- Ministry of Science & Technology of China (MSTC)
- National Natural Science Foundation of China (NSFC)
- Ministry of Education of China (MOEC), China
- Ministry of Science and Education, Croatia
- Centro de Aplicaciones Tecnologicas y Desarrollo Nuclear (CEADEN), Cubaenergia, Cuba
- Ministry of Education, Youth and Sports of the Czech Republic, Czech Republic
- Danish Council for Independent Research Natural Sciences
- Carlsberg Foundation
- Danish National Research Foundation (DNRF), Denmark
- Helsinki Institute of Physics (HIP), Finland
- Commissariat a l'Energie Atomique (CEA)
- Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
- Centre National de la Recherche Scientifique (CNRS), France
- Bundesministerium fur Bildung, Wissenschaft, Forschung und Technologie (BMBF)
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH, Germany
- General Secretariat for Research and Technology, Ministry of Education, Research and Religions, Greece
- National Research, Development and Innovation Office, Hungary
- Department of Atomic Energy, Government of India(DAE)
- Department of Science and Technology, Government of India (DST)
- University Grants Commission, Government of India (UGC)
- Council of Scientific and Industrial Research (CSIR), India
- Indonesian Institute of Sciences, Indonesia
- Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
- Istituto Nazionale di Fisica Nucleare (INFN), Italy
- Institute for Innovative Science and Technology
- Nagasaki Institute of Applied Science (IIST)
- Japan Society for the Promotion of Science (JSPS) KAKENHI
- Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- Consejo Nacional de Ciencia (CONACYT) y Tecnologia, through Fondo de Cooperacion Internacional en Ciencia y Tecnologia (FONCICYT)
- Direccion General de Asuntos del Personal Academico (DGAPA), Mexico
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Research Council of Norway, Norway
- Commission on Science and Technology for Sustainable Development in the South (COMSATS), Pakistan
- Pontificia Universidad Catolica del Peru, Peru
- Ministry of Science and Higher Education
- National Science Centre, Poland
- Korea Institute of Science and Technology Information
- National Research Foundation of Korea (NRF), Republic of Korea
- Ministry of Education and Scientific Research
- Institute of Atomic Physics
- Romanian National Agency for Science, Technology and Innovation, Romania
- Joint Institute for Nuclear Research (JINR), Ministry of Education and Science of the Russian Federation
- National Research Centre Kurchatov Institute, Russia
- Ministry of Education, Science, Research and Sport of the Slovak Republic, Slovakia
- National Research Foundation of South Africa, South Africa
- Swedish Research Council (VR)
- Knut & Alice Wallenberg Foundation (KAW), Sweden
- European Organization for Nuclear Research, Switzerland
- National Science and Technology Development Agency (NSDTA)
- Suranaree University of Technology (SUT)
- Office of the Higher Education Commission under NRU project of Thailand, Thailand
- Turkish Atomic Energy Agency (TAEK), Turkey
- National Academy of Sciences of Ukraine, Ukraine
- Science and Technology Facilities Council (STFC), United Kingdom
- National Science Foundation of the United States of America (NSF)
- United States Department of Energy, Office of Nuclear Physics (DOE NP), United States of America
- STFC [ALICE, ST/M00158X/1, ST/P005047/1, ST/M00340X/1, ST/P005438/1, ST/M001598/1, ST/P004199/1, ST/L005670/1, ST/L005751/1, ST/N00261X/1, 1963192, 1796881, ST/P004598/1, 1843572, 2017 STFC Nuclear Physics CG, ST/J000108/1, ST/M001601/1, 1657698] Funding Source: UKRI
- Science and Technology Facilities Council [2017 STFC Nuclear Physics CG] Funding Source: researchfish
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We present the first measurements of femtoscopic correlations between the K-S(0) and K-+/- particles in pp collisions at root s = 7 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding solely via the a(0)(980) resonance. The extracted kaon source radius and correlation strength parameters for (KSK-)-K-0 are found to be equal within the experimental uncertainties to those for (KSK+)-K-0. Results of the present study are compared with those from identical-kaon femtoscopic studies also performed with pp collisions at root s = 7 TeV by ALICE and with a (KSK +/-)-K-0 measurement in Pb-Pb collisions at root s(NN) = 2.76 TeV. Combined with the Pb-Pb results, our pp analysis is found to be compatible with the interpretation of the a (980) having a tetraquark structure instead of that of a diquark. (C) 2018 Published by Elsevier B.V.
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