0598376 - ÚJF 2025 RIV NL eng J - Journal Article
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. … Total 365 authors
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
Research Infrastructure: BNL-CZ III - 90234
Institutional support: RVO:61389005
Keywords : STAR collaboration * cross section * transverse momentum dependent patron
OECD category: Nuclear physics
Impact factor: 4.3, year: 2023 ; AIS: 1.232, rok: 2023
Method of publishing: Open access
Result website:
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.
Permanent Link: https://hdl.handle.net/11104/0356043