Improving constraints on gluon spin-momentum correlations in transversely polarized protons via midrapidity open-heavy-flavor electrons in p? plus p collisions at psffi=200 GeV

Autor
Abdulameer, N. J.
Acharya, U.
Aidala, C.
Akiba, Y.
Alfred, M.
Andrieux, V.
Apadula, N.
Asano, H.
Azmoun, B.
Babintsev, V.
Slunecka, Miloslav
Tomasek, Michal
Virius, Miroslav
Vrba, Vaclav
Datum vydání
2023Publikováno v
Physical Review DRočník / Číslo vydání
107 (5)ISBN / ISSN
ISSN: 2470-0010Metadata
Zobrazit celý záznamKolekce
Tato publikace má vydavatelskou verzi s DOI 10.1103/PhysRevD.107.052012
Abstrakt
Polarized proton-proton collisions provide leading-order access to gluons, presenting an opportunity to constrain gluon spin-momentum correlations within transversely polarized protons and enhance our understanding of the three-dimensional structure of the proton. Midrapidity open-heavy-flavor production ffiffiat p s1/4 200 GeV is dominated by gluon-gluon fusion, providing heightened sensitivity to gluon dynamics relative to other production channels. Transverse single-spin asymmetries of positrons and electrons from heavy-flavor hadron decays are measured at midrapidity using the PHENIX detector at the Relativistic Heavy Ion Collider. These charge-separated measurements are sensitive to gluon correlators that can in principle be related to gluon orbital angular momentum via model calculations. Explicit constraints on gluon correlators are extracted for two separate models, one of which had not been constrained previously.
Klíčová slova
Polarized proton-proton collisions, gluons, gluon-gluon fusion, PHENIX detector, Relativistic Heavy Ion Collider, BNL.
Trvalý odkaz
https://hdl.handle.net/20.500.14178/2327Licence
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