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Measurement of differential $$ b\overline{b} $$- and $$ c\overline{c} $$-dijet cross-sections in the forward region of pp collisions at $$ \sqrt{s} $$ = 13 TeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 4 июня 2021 г.
- Авторы: Бережной А.В., Горелов И.В., Данилина А.В., Лефлат А.К., Никитин Н.В., Саврина Д.В., Волков В.Ю., Жуков В.Ю., LHCb Collaboration
- Журнал: Journal of High Energy Physics
- Том: 2021
- Номер: 2
- Год издания: 2021
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Номер статьи: 23
- DOI: 10.1007/jhep02(2021)023
- Аннотация: The inclusive bb¯¯- and cc¯¯-dijet production cross-sections in the forward region of pp collisions are measured using a data sample collected with the LHCb detector at a centre-of-mass energy of 13 TeV in 2016. The data sample corresponds to an integrated luminosity of 1.6 fb−1. Differential cross-sections are measured as a function of the transverse momentum and of the pseudorapidity of the leading jet, of the rapidity difference between the jets, and of the dijet invariant mass. A fiducial region for the measurement is defined by requiring that the two jets originating from the two b or c quarks are emitted with transverse momentum greater than 20 GeV/c, pseudorapidity in the range 2.2 < η < 4.2, and with a difference in the azimuthal angle between the two jets greater than 1.5. The integrated bb¯¯-dijet cross-section is measured to be 53.0 ± 9.7 nb, and the total cc¯¯-dijet cross-section is measured to be 73 ± 16 nb. The ratio between cc¯¯- and bb¯¯-dijet cross-sections is also measured and found to be 1.37 ± 0.27. The results are in agreement with theoretical predictions at next-to-leading order.
- Добавил в систему: Бережной Александр Викторович