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Measurement of D0 , D+ , D∗+ and D+s production in pp collisions at sqrt(sNN) = 5.02 TeV with ALICEстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 3 октября 2019 г.
- Авторы: Malinina L., ALICE C.
- Журнал: European Physical Journal C
- Том: 79
- Номер: 5
- Год издания: 2019
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 388
- DOI: 10.1140/epjc/s10052-019-6873-6
- Аннотация: The measurements of the production of prompt D0 , D+ , D∗+ , and D+s mesons in proton–proton (pp) collisions at 𝑠√=5.02 TeV 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 D0→K−𝜋+ , D+→K−𝜋+𝜋+ , D∗+→D0𝜋+→K−𝜋+𝜋+ , D+s→𝜙𝜋+→K+K−𝜋+ , and their charge conjugates. The production cross sections were measured in the transverse momentum interval 0<𝑝T<36 GeV/𝑐 for D0 , 1<𝑝T<36 GeV/𝑐 for D+ and D∗+ , and in 2<𝑝T<24 GeV/𝑐 for D+s mesons. Thanks to the higher integrated luminosity, an analysis in finer 𝑝T bins with respect to the previous measurements at 𝑠√=7 TeV was performed, allowing for a more detailed description of the cross-section 𝑝T shape. The measured 𝑝T -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√=5.02 TeV . 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.
- Добавил в систему: Малинина Людмила Владимировна