Publication: Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV
Дата
2021
Авторы
Acharya, U. A.
Aidala, C.
Akiba, Y.
Alfred, M.
Blau, D. S.
Riabov, V.
Samsonov, V.
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© 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.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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Transverse single-spin asymmetries of midrapidity π0 and η mesons in polarized p+p collisions at s =200 GeV / Acharya, U.A. [et al.] // Physical Review D. - 2021. - 103. - № 5. - 10.1103/PhysRevD.103.052009
URI
https://www.doi.org/10.1103/PhysRevD.103.052009
https://www.scopus.com/record/display.uri?eid=2-s2.0-85104237600&origin=resultslist
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https://openrepository.mephi.ru/handle/123456789/23899
https://www.scopus.com/record/display.uri?eid=2-s2.0-85104237600&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000648531900001
https://openrepository.mephi.ru/handle/123456789/23899