Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV

(PHENIX Collaboration)

doi:10.1103/PhysRevD.103.052009

Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV

(PHENIX Collaboration)

Relativistic Nuclear Physics

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

9 Scopus citations

Abstract

We present a measurement of the transverse single-spin asymmetry for π0 and η mesons in p↑+p collisions in the pseudorapidity range |η|<0.35 and at a center-of-mass energy of 200 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. In comparison with previous measurements in this kinematic region, these results have factor-of-3-smaller uncertainties. As hadrons, π0 and η mesons are sensitive to both initial- and final-state nonperturbative effects for a mix of parton flavors. Comparisons of the differences in their transverse single-spin asymmetries have the potential to disentangle the possible effects of strangeness, isospin, or mass. These results can constrain the twist-3 trigluon collinear correlation function as well as the gluon Sivers function.

Original language	English
Article number	052009
Journal	Physical Review D
Volume	103
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.103.052009
State	Published - Mar 22 2021

Funding

We thank the staff of the Collider-Accelerator and Physics Departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We also thank D. Pitonyak, S. Yoshida, U. D’Alesio, F. Murgia and C. Pisano for helpful discussions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (U.S.A.), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Científico e Tecnológico and Fundação de Amparo à Pesquisa do Estado de São Paulo (Brazil), Natural Science Foundation of China (People’s Republic of China), Croatian Science Foundation and Ministry of Science and Education (Croatia), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat à l’Énergie Atomique, and Institut National de Physique Nucléaire et de Physique des Particules (France), Bundesministerium für Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), J. Bolyai Research Scholarship, EFOP, the New National Excellence Program (ÚNKP), NKFIH, and OTKA (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), Basic Science Research and SRC(CENuM) Programs through NRF funded by the Ministry of Education and the Ministry of Science and ICT (Korea), Physics Department, Lahore University of Management Sciences (Pakistan), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, the Hungarian American Enterprise Scholarship Fund, the U.S.-Hungarian Fulbright Foundation, and the U.S.-Israel Binational Science Foundation.

Funders	Funder number
Abilene Christian University Research Council
Basic Science Research
CENuM
Centre National de la Recherche Scientifique, Commissariat à l’Énergie Atomique
Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation
Research Foundation of SUNY
U.S.-Hungarian Fulbright Foundation
Wallenberg Foundation
National Science Foundation
U.S. Department of Energy
Semiconductor Research Corporation
CRDF Global
Alexander von Humboldt-Stiftung
Nuclear Physics
Vanderbilt University
Lahore University of Management Sciences
College of Arts and Sciences, Boston University
Department of Physics, Harvard University
Hungarian-American Enterprise Scholarship Fund
Deutscher Akademischer Austauschdienst
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
United States-Israel Binational Science Foundation
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy
Bundesministerium für Bildung und Forschung
Russian Academy of Sciences
Ministry of Education
Haridus- ja Teadusministeerium
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Ministry of Science, ICT and Future Planning
National Research Foundation of Korea
Vetenskapsrådet
Hrvatska Zaklada za Znanost
Ministry of Education and Science
Nemzeti Kutatási Fejlesztési és Innovációs Hivatal
Institut National de Physique Nucléaire et de Physique des Particules
Federal Agency of Atomic Energy of the Russian Federation

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10.1103/PhysRevD.103.052009

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title = "Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV",

abstract = "We present a measurement of the transverse single-spin asymmetry for π0 and η mesons in p↑+p collisions in the pseudorapidity range |η|<0.35 and at a center-of-mass energy of 200 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. In comparison with previous measurements in this kinematic region, these results have factor-of-3-smaller uncertainties. As hadrons, π0 and η mesons are sensitive to both initial- and final-state nonperturbative effects for a mix of parton flavors. Comparisons of the differences in their transverse single-spin asymmetries have the potential to disentangle the possible effects of strangeness, isospin, or mass. These results can constrain the twist-3 trigluon collinear correlation function as well as the gluon Sivers function.",

author = "{(PHENIX Collaboration)} and Acharya, {U. A.} and C. Aidala and Y. Akiba and M. Alfred and V. Andrieux and N. Apadula and H. Asano and B. Azmoun and V. Babintsev and Bandara, {N. S.} and Barish, {K. N.} and S. Bathe and A. Bazilevsky and M. Beaumier and R. Belmont and A. Berdnikov and Y. Berdnikov and L. Bichon and B. Blankenship and Blau, {D. S.} and Bok, {J. S.} and V. Borisov and Brooks, {M. L.} and J. Bryslawskyj and V. Bumazhnov and S. Campbell and {Canoa Roman}, V. and R. Cervantes and Chi, {C. Y.} and M. Chiu and Choi, {I. J.} and Choi, {J. B.} and Z. Citron and M. Connors and R. Corliss and N. Cronin and M. Csan{\'a}d and T. Cs{\"o}rgo and Danley, {T. W.} and Daugherity, {M. S.} and G. David and K. Deblasio and K. Dehmelt and A. Denisov and A. Deshpande and Desmond, {E. J.} and A. Dion and D. Dixit and Lajoie, {J. G.} and Read, {K. F.}",

note = "Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

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doi = "10.1103/PhysRevD.103.052009",

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AU - (PHENIX Collaboration)

AU - Acharya, U. A.

AU - Aidala, C.

AU - Akiba, Y.

AU - Alfred, M.

AU - Andrieux, V.

AU - Apadula, N.

AU - Asano, H.

AU - Azmoun, B.

AU - Babintsev, V.

AU - Bandara, N. S.

AU - Barish, K. N.

AU - Bathe, S.

AU - Bazilevsky, A.

AU - Beaumier, M.

AU - Belmont, R.

AU - Berdnikov, A.

AU - Berdnikov, Y.

AU - Bichon, L.

AU - Blankenship, B.

AU - Blau, D. S.

AU - Bok, J. S.

AU - Borisov, V.

AU - Brooks, M. L.

AU - Bryslawskyj, J.

AU - Bumazhnov, V.

AU - Campbell, S.

AU - Canoa Roman, V.

AU - Cervantes, R.

AU - Chi, C. Y.

AU - Chiu, M.

AU - Choi, I. J.

AU - Choi, J. B.

AU - Citron, Z.

AU - Connors, M.

AU - Corliss, R.

AU - Cronin, N.

AU - Csanád, M.

AU - Csörgo, T.

AU - Danley, T. W.

AU - Daugherity, M. S.

AU - David, G.

AU - Deblasio, K.

AU - Dehmelt, K.

AU - Denisov, A.

AU - Deshpande, A.

AU - Desmond, E. J.

AU - Dion, A.

AU - Dixit, D.

AU - Lajoie, J. G.

AU - Read, K. F.

N1 - Publisher Copyright: © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2021/3/22

Y1 - 2021/3/22

N2 - We present a measurement of the transverse single-spin asymmetry for π0 and η mesons in p↑+p collisions in the pseudorapidity range |η|<0.35 and at a center-of-mass energy of 200 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. In comparison with previous measurements in this kinematic region, these results have factor-of-3-smaller uncertainties. As hadrons, π0 and η mesons are sensitive to both initial- and final-state nonperturbative effects for a mix of parton flavors. Comparisons of the differences in their transverse single-spin asymmetries have the potential to disentangle the possible effects of strangeness, isospin, or mass. These results can constrain the twist-3 trigluon collinear correlation function as well as the gluon Sivers function.

AB - We present a measurement of the transverse single-spin asymmetry for π0 and η mesons in p↑+p collisions in the pseudorapidity range |η|<0.35 and at a center-of-mass energy of 200 GeV with the PHENIX detector at the Relativistic Heavy Ion Collider. In comparison with previous measurements in this kinematic region, these results have factor-of-3-smaller uncertainties. As hadrons, π0 and η mesons are sensitive to both initial- and final-state nonperturbative effects for a mix of parton flavors. Comparisons of the differences in their transverse single-spin asymmetries have the potential to disentangle the possible effects of strangeness, isospin, or mass. These results can constrain the twist-3 trigluon collinear correlation function as well as the gluon Sivers function.

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DO - 10.1103/PhysRevD.103.052009

M3 - Article

AN - SCOPUS:85104237600

SN - 2470-0010

VL - 103

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 052009

ER -

Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV

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