Multiplicity and rapidity dependence of K*(892).sup.0./sup. and φ(1020) production in p-Pb collisions at √s.sub.NN./sub.=5.02 TeV

0579690 - ÚJF 2024 RIV US eng J - Článek v odborném periodiku
Acharya, S. - Adamová, Dagmar - Adler, A. - Aglieri Rinella, G. - Bielčík, J. - Bielčíková, Jana - Broz, M. - Contreras, J. G. - Filová, V. - Grecká, Ekaterina - Grund, D. - Herman, T. - Horák, D. - Isakov, Artem - Kotliarov, Artem - Krupová, D. M. - Křížek, Filip - Křížková Gajdošová, K. - Kushpil, Svetlana - Petráček, V. - Šafařík, K. - Torres, S. R. - Závada, Petr … celkem 1032 autorů
Multiplicity and rapidity dependence of K*(892)⁰ and φ(1020) production in p-Pb collisions at √s_NN=5.02 TeV.
European Physical Journal C. Roč. 83, č. 6 (2023), č. článku 540. ISSN 1434-6044. E-ISSN 1434-6052
Výzkumná infrastruktura: CERN-CZ III - 90240
Institucionální podpora: RVO:68378271 ; RVO:61389005
Klíčová slova: ALICE collaboration * heavy ion experiments
Obor OECD: Nuclear physics; Particles and field physics (FZU-D)
Impakt faktor: 4.4, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1140/epjc/s10052-023-11449-3

The transverse-momentum (p(T)) spectra of K* (892)(0) and phi(1020) measured with the ALICE detector up to p(T) = 16 GeV/c in the rapidity range -1.2 < y < 0.3, in p-Pb collisions at the center-of-mass energy per nucleon-nucleon collision root s(NN) = 5.02 TeV are presented as a function of charged particle multiplicity and rapidity. The measured p(T) distributions show a dependence on both multiplicity and rapidity at low p(T) whereas no significant dependence is observed at high p(T). A rapidity dependence is observed in the p(T)-integrated yield (dN/dy), whereas the mean transverse momentum ( pT ) shows a flat behavior as a function of rapidity. The rapidity asymmetry (Y-asym) at low p(T) (< 5 GeV/c) is more significant for higher multiplicity classes. At high p(T), no significant rapidity asymmetry is observed in any of the multiplicity classes. Both K* (892)(0) and phi(1020) showsimilar Y-asym. The nuclear modification factor (QCP) as a function of p(T) shows a Cronin-like enhancement at intermediate p(T), which is more prominent at higher rapidities (Pb-going direction) and in higher multiplicity classes. At high p(T) (> 5 GeV/c), the Q(CP) values are greater than unity and no significant rapidity dependence is observed.
Trvalý link: https://hdl.handle.net/11104/0348499