Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions

STAR Collaboration

doi:10.1016/j.physletb.2024.138715

Measurements of the Z⁰/γ^⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions

STAR Collaboration

Instituto de Alta Investigación

American University in Cairo
Texas A&M University
Czech Technical University in Prague
AGH University of Krakow
Brookhaven National Laboratory
Ohio State University
Panjab University
Variable Energy Cyclotron Centre
Indian Institute of Technology Patna
Abilene Christian University
Universidad de Tarapacá
University of Houston
University of California at Riverside
University of Jammu
Stony Brook University
Eötvös Loránd University
Czech Academy of Sciences
Chinese Academy of Sciences
Yale University
University of California at Davis
Lawrence Berkeley National Laboratory
University of California at Los Angeles
Indiana University Bloomington
National Institute of Technology, Durgapur
Shandong University
Fudan University
Tsinghua University
University of California at Berkeley
University of Illinois at Chicago
Heidelberg University
Indian Institute of Science Education and Research, Berhampur
Kent State University
Rice University
University of Tsukuba
University of Kentucky
University of Calabria
National Cheng Kung University
Purdue University
Southern Connecticut State University
CAS - Institute of Modern Physics
Technische Universität Darmstadt
Temple University
Valparaiso University
Indian Institute of Science Education and Research, Tirupati
University of Chinese Academy of Sciences
Central China Normal University
University of Science and Technology of China
Wayne State University
Warsaw University of Technology
Goethe University Frankfurt
Lehigh University
Wuhan University of Science and Technology
Guangxi Normal University
South China Normal University
University of Texas at Austin
National Institute of Science Education and Research
Sejong University
Rutgers - The State University of New Jersey, New Brunswick
Institute of Nuclear Physics PAN
Max Planck Institute for Physics (Werner Heisenberg Institute)
Creighton University
Ball State University
Huzhou University
Michigan State University
Argonne National Laboratory
United States Naval Academy
Chongqing University

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7 Citas (Scopus)

Resumen

The differential cross section for Z⁰ 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 Z⁰ 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 Z⁰/γ^⁎ 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 Z⁰/γ^⁎ total cross section. We also report the measurement of Z⁰/γ^⁎ TSSA in transversely polarized p+p collisions at 510 GeV.

Idioma original	Inglés
Número de artículo	138715
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	854
DOI	https://doi.org/10.1016/j.physletb.2024.138715
Estado	Publicada - jul 2024

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@article{06cc79eaf1d7438c9163a3e471e8736c,

title = "Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions",

abstract = "The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 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 Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.",

keywords = "Cross section, Sivers function, Transverse momentum dependent parton distribution functions (TMDs), Transverse single spin asymmetry (TSSA, A), Z",

author = "Abdulhamid, \{M. I.\} and Aboona, \{B. E.\} and J. Adam and L. Adamczyk and S. Kabana and \{STAR Collaboration\}",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2024",

month = jul,

doi = "10.1016/j.physletb.2024.138715",

language = "English",

volume = "854",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

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TY - JOUR

T1 - Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions

AU - Abdulhamid, M. I.

AU - Aboona, B. E.

AU - Adam, J.

AU - Adamczyk, L.

AU - Kabana, S.

AU - STAR Collaboration

PY - 2024/7

Y1 - 2024/7

N2 - The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 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 Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.

AB - The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 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 Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.

KW - Cross section

KW - Sivers function

KW - Transverse momentum dependent parton distribution functions (TMDs)

KW - Transverse single spin asymmetry (TSSA, A)

KW - Z

UR - https://www.scopus.com/pages/publications/85193980052

U2 - 10.1016/j.physletb.2024.138715

DO - 10.1016/j.physletb.2024.138715

M3 - Article

AN - SCOPUS:85193980052

SN - 0370-2693

VL - 854

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 138715

ER -

Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions

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Measurements of the Z⁰/γ^⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions