Publication: Measurement of D , D + , D ∗ + and Ds+ production in pp collisions at √s=5.02TeV with ALICE
Дата
2019
Авторы
Acharya, S.
Adamova, D.
Adhya, S. P.
Adler, A.
Belyaev, V.
Bogdanov, A.
Bolozdynya, A.
Grigoriev, V.
Kaplin, V.
Kondratyeva, N.
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Аннотация
© 2019, CERN for the benefit of the ALICE collaboration. The measurements of the production of prompt D , D + , D ∗ + , and Ds+ mesons in proton–proton (pp) collisions at s=5.02TeV with the ALICE detector at the Large Hadron Collider (LHC) are reported. D mesons were reconstructed at mid-rapidity (| y| < 0.5) via their hadronic decay channels D → K - π + , D + → K - π + π + , D ∗ + → D π + → K - π + π + , Ds+→ϕπ+→K+K-π+, and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<pT<36GeV/c for D , 1<pT<36GeV/c for D + and D ∗ + , and in 2<pT<24GeV/c for Ds+ mesons. Thanks to the higher integrated luminosity, an analysis in finer p T bins with respect to the previous measurements at s=7TeV was performed, allowing for a more detailed description of the cross-section p T shape. The measured p T -differential production cross sections are compared to the results at s=7 TeV and to four different perturbative QCD calculations. Its rapidity dependence is also tested combining the ALICE and LHCb measurements in pp collisions at s=5.02TeV. This measurement will allow for a more accurate determination of the nuclear modification factor in p–Pb and Pb–Pb collisions performed at the same nucleon–nucleon centre-of-mass energy.
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Measurement of D , D + , D ∗ + and Ds+ production in pp collisions at √s=5.02TeV with ALICE / Acharya, S. [et al.] // European Physical Journal C. - 2019. - 79. - № 5. - 10.1140/epjc/s10052-019-6873-6
URI
https://www.doi.org/10.1140/epjc/s10052-019-6873-6
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https://openrepository.mephi.ru/handle/123456789/17894
https://www.scopus.com/record/display.uri?eid=2-s2.0-85065322611&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000467183800004
https://openrepository.mephi.ru/handle/123456789/17894