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Scattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC

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dc.contributor.authorAcharya, S.
dc.contributor.authorAdamova, D.
dc.contributor.authorAdhya, S. P.
dc.contributor.authorAdler, A.
dc.contributor.authorBelyaev, V.
dc.contributor.authorBogdanov, A.
dc.contributor.authorBolozdynya, A.
dc.contributor.authorBorissov, A.
dc.contributor.authorGrigoriev, V.
dc.contributor.authorKaplin, V.
dc.contributor.authorKondratyeva, N.
dc.contributor.authorLoginov, V.
dc.contributor.authorMelikyan, Y.
dc.contributor.authorSamsonov, V.
dc.contributor.authorSelyuzhenkov, I.
dc.contributor.authorБеляев, Владимир Никитич
dc.contributor.authorБогданов, Алексей Александрович
dc.contributor.authorБолоздыня, Александр Иванович
dc.contributor.authorГригорьев, Владислав Анатольевич
dc.contributor.authorКондратьева, Наталья Викторовна
dc.contributor.authorЛогинов, Виталий Александрович
dc.date.accessioned2024-11-25T17:05:32Z
dc.date.available2024-11-25T17:05:32Z
dc.date.issued2020
dc.description.abstractThe study of the strength and behavior of the antikaon-nucleon ((K) over bar N) interaction constitutes one of the key focuses of the strangeness sector in low-energy quantum chromodynamics (QCD). In this Letter a unique high-precision measurement of the strong interaction between kaons and protons, close and above the kinematic threshold, is presented. The femtoscopic measurements of the correlation function at low pair-frame relative momentum of (K+ p circle plus K- (p) over bar) and (K- p circle plus K+ (p) over bar) pairs measured in pp collisions at root s = 5, 7, and 13 TeV are reported. A structure observed around a relative momentum of 58 MeV/c in the measured correlation function of (K- p circle plus K+ (p) over bar) with a significance of 4.4 sigma constitutes the first experimental evidence for the opening of the ((K) over bar (0)(n) circle plus K-0 (n) over bar) breaking channel due to the mass difference between charged and neutral kaons. The measured correlation functions have been compared to Julich and Kyoto models in addition to the Coulomb potential. The high-precision data at low relative momenta presented in this work prove femtoscopy to be a powerful complementary tool to scattering experiments and provide new constraints above the (K) over barN threshold for low-energy QCD chiral models.
dc.identifier.citationScattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC / Acharya, S [et al.] // Physical Review Letters. - 2020. - 124. - № 9. - 10.1103/PhysRevLett.124.092301
dc.identifier.doi10.1103/PhysRevLett.124.092301
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevLett.124.092301
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85082380767&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000518465300005
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/20413
dc.relation.ispartofPhysical Review Letters
dc.titleScattering Studies with Low-Energy Kaon-Proton Femtoscopy in Proton-Proton Collisions at the LHC
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue9
oaire.citation.volume124
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