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Forward rapidity J/$\uppsi$ production as a function of charged-particle multiplicity in pp collisions at $$ \textbackslashsqrt$\lbrace$s$\rbrace$ $$ = 5.02 and 13 TeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: ALICE C., Malinina L.
- Журнал: Journal of High Energy Physics
- Том: 2022
- Номер: 6
- Год издания: 2022
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 015
- DOI: 10.1007/jhep06(2022)015
- Аннотация: The production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in proton-proton (pp) collisions at center-of-mass energies ss = 5.02 and 13 TeV. The J/ψ mesons are reconstructed via their decay into dimuons in the rapidity interval (2.5 < y < 4.0), whereas the charged-particle multiplicity density (dNchch/dη) is measured at midrapidity (|η| < 1). The production rate as a function of multiplicity is reported as the ratio of the yield in a given multiplicity interval to the multiplicity-integrated one. This observable shows a linear increase with charged-particle multiplicity normalized to the corresponding average value for inelastic events (dNchch/dη/〈dNchch/dη〉), at both the colliding energies. Measurements are compared with available ALICE results at midrapidity and theoretical model calculations. First measurement of the mean transverse momentum (〈pTT〉) of J/ψ in pp collisions exhibits an increasing trend as a function of dNchch/dη/〈dNchch/dη〉 showing a saturation towards high charged-particle multiplicities
- Добавил в систему: Малинина Людмила Владимировна