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

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

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

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.

Original language	English
Article number	138715
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	854
DOIs	https://doi.org/10.1016/j.physletb.2024.138715
State	Published - Jul 2024

Bibliographical note

Publisher Copyright:
© 2024

Funding

We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by Ministry of Education at NCKU, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science, and Technology (MEXT) and Japan Society for the Promotion of Science (JSPS). We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by Ministry of Education at NCKU, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan Society for the Promotion of Science (JSPS) and Agencia Nacional de Investigación y Desarrollo (ANID) of Chile.

Funders
Hungarian Ministry of Human Capacities
National Research Foundation of Korea
Max Delbrück Center for Molecular Medicine in the Helmholtz Association
Ministry of Education of the People's Republic of China
Narodowe Centrum Nauki
Grantová Agentura České Republiky
National Science Foundation Arctic Social Science Program
Japan Society for the Promotion of Science
Agencia Nacional de Investigación y Desarrollo
Bundesministerium für Bildung und Forschung
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
Rose Community Foundation
Ministry of Education at NCKU
Ministry of Science and Technology of the People's Republic of China
Department of Atomic Energy and Department of Science and Technology
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie
WUT ID-UB of Poland
Ministarstvo Obrazovanja, Znanosti i Sporta
Chinese Academy of Sciences
Office of Science Programs
Institute for Nuclear Physics
Ministerstvo Školství, Mládeže a Tělovýchovy
RHIC Operations Group
Ministry of Education, Culture, Sports, Science and Technology
National Natural Science Foundation of China (NSFC)

Keywords

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

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/j.physletb.2024.138715

Cite this

@article{87c9b8b650de4481860af52e592dbbf8,

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 Adams, \{J. R.\} and I. Aggarwal and Aggarwal, \{M. M.\} and Z. Ahammed and Aschenauer, \{E. C.\} and S. Aslam and J. Atchison and V. Bairathi and \{Ball Cap\}, \{J. G.\} and K. Barish and R. Bellwied and P. Bhagat and A. Bhasin and S. Bhatta and Bhosale, \{S. R.\} and J. Bielcik and J. Bielcikova and Brandenburg, \{J. D.\} and C. Broodo and Cai, \{X. Z.\} and H. Caines and \{Calder{\'o}n de la Barca S{\'a}nchez\}, M. and D. Cebra and J. Ceska and I. Chakaberia and P. Chaloupka and Chan, \{B. K.\} and Z. Chang and A. Chatterjee and D. Chen and J. Chen and Chen, \{J. H.\} and Z. Chen and J. Cheng and Y. Cheng and S. Choudhury and W. Christie and X. Chu and Crawford, \{H. J.\} and M. Csan{\'a}d and G. Dale-Gau and A. Das and Deppner, \{I. M.\} and A. Dhamija and P. Dixit and R. Fatemi",

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

year = "2024",

month = jul,

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

language = "English",

volume = "854",

}

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 - Adams, J. R.

AU - Aggarwal, I.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Aschenauer, E. C.

AU - Aslam, S.

AU - Atchison, J.

AU - Bairathi, V.

AU - Ball Cap, J. G.

AU - Barish, K.

AU - Bellwied, R.

AU - Bhagat, P.

AU - Bhasin, A.

AU - Bhatta, S.

AU - Bhosale, S. R.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Brandenburg, J. D.

AU - Broodo, C.

AU - Cai, X. Z.

AU - Caines, H.

AU - Calderón de la Barca Sánchez, M.

AU - Cebra, D.

AU - Ceska, J.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chan, B. K.

AU - Chang, Z.

AU - Chatterjee, A.

AU - Chen, D.

AU - Chen, J.

AU - Chen, J. H.

AU - Chen, Z.

AU - Cheng, J.

AU - Cheng, Y.

AU - Choudhury, S.

AU - Christie, W.

AU - Chu, X.

AU - Crawford, H. J.

AU - Csanád, M.

AU - Dale-Gau, G.

AU - Das, A.

AU - Deppner, I. M.

AU - Dhamija, A.

AU - Dixit, P.

AU - Fatemi, R.

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

UR - https://www.scopus.com/pages/publications/85193980052#tab=citedBy

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

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this

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

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this

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