0598376 - ÚJF 2025 RIV NL eng J - Článek v odborném periodiku
Abdulhamid, M. I. - Aboona, B. E. - Adam, J. - Adamczyk, L. - Bielčík, J. - Bielčíková, Jana - Češka, J. - Das, A. - Holub, L. - Chaloupka, P. - Líčeník, Robert - Lomnický, O. - Mezhanska, O. - Mrázková, Jitka - Pal, S. - Prozorova, V. - Robotková, Monika - Svoboda, Michal - Šumbera, Michal - Truhlář, T. - Trzeciak, B. A. … celkem 365 autorů
Measurements of the Z⁰/γ^⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions.
Physics Letters. B. Roč. 854, JUL (2024), č. článku 138715. ISSN 0370-2693. E-ISSN 1873-2445
Výzkumná infrastruktura: BNL-CZ III - 90234
Institucionální podpora: RVO:61389005
Klíčová slova: STAR collaboration * cross section * transverse momentum dependent patron
Obor OECD: Nuclear physics
Impakt faktor: 4.3, rok: 2023 ; AIS: 1.232, rok: 2023
Způsob publikování: Open access
Web výsledku:
https://doi.org/10.1016/j.physletb.2024.138715DOI: https://doi.org/10.1016/j.physletb.2024.138715

The differential cross section for Z(0) production, measured as a function of the boson's transverse momentum (p(T)), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z(0) is sensitive to one of the polarized TMDs, the Sivers function, which is predicted to have the opposite sign in p + p -> W/Z + X from that which enters in semi-inclusive deep inelastic scattering. In this Letter, the STAR Collaboration reports the first measurement of the Z(0)/gamma* differential cross section as a function of its p(T) in p + p collisions at a center-of-mass energy of 510 GeV, together with the Z(0)/gamma* total cross section. We also report the measurement of Z(0)/gamma* TSSA in transversely polarized p + p collisions at 510 GeV.
Trvalý link: https://hdl.handle.net/11104/0356043