Publication: Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV
Дата
2020
Авторы
Acharya, S.
Adamova, D.
Adler, A.
Adolfsson, J.
Belyaev, V.
Bogdanov, A.
Bolozdynya, A.
Borissov, A.
Grigoriev, V.
Kaplin, V.
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© 2020, CERN for the benefit of the ALICE collaboration.This paper presents the measurements of π±, K ±, p and p ¯ transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the pT-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.
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Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV / Acharya, S. [et al.] // European Physical Journal C. - 2020. - 80. - № 8. - 10.1140/epjc/s10052-020-8125-1
URI
https://www.doi.org/10.1140/epjc/s10052-020-8125-1
https://www.scopus.com/record/display.uri?eid=2-s2.0-85088962855&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000559326900002
https://openrepository.mephi.ru/handle/123456789/22153
https://www.scopus.com/record/display.uri?eid=2-s2.0-85088962855&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000559326900002
https://openrepository.mephi.ru/handle/123456789/22153