Publication: Search for a common baryon source in high-multiplicity pp collisions at the LHC
Дата
2020
Авторы
Acharya, S.
Adamova, D.
Adler, A.
Adolfsson, J.
Belyaev, V.
Bogdanov, A. A.
Bolozdynya, A.
Borissov, A.
Grigoriev, V.
Kaplin, V.
Journal Title
Journal ISSN
Volume Title
Издатель
Аннотация
© 2020 CERN for the benefit of the ALICE CollaborationWe report on the measurement of the size of the particle-emitting source from two-baryon correlations with ALICE in high-multiplicity pp collisions at s=13 TeV. The source radius is studied with low relative momentum p–p, p‾–p‾, p–Λ, and p‾–Λ‾ pairs as a function of the pair transverse mass mT considering for the first time in a quantitative way the effect of strong resonance decays. After correcting for this effect, the radii extracted for pairs of different particle species agree. This indicates that protons, antiprotons, Λ s, and Λ‾ s originate from the same source. Within the measured mT range (1.1–2.2) GeV/c2the invariant radius of this common source varies between 1.3 and 0.85 fm. These results provide a precise reference for studies of the strong hadron–hadron interactions and for the investigation of collective properties in small colliding systems.
Описание
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Цитирование
Search for a common baryon source in high-multiplicity pp collisions at the LHC / Acharya, S. [et al.] // Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - 2020. - 811. - 10.1016/j.physletb.2020.135849
URI
https://www.doi.org/10.1016/j.physletb.2020.135849
https://www.scopus.com/record/display.uri?eid=2-s2.0-85093678392&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/22502
https://www.scopus.com/record/display.uri?eid=2-s2.0-85093678392&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000612225400003
https://openrepository.mephi.ru/handle/123456789/22502