TY  - INPR
T1  - Measurement of transverse single-spin asymmetries for dijet production in polarized proton-proton collisions at √s = 200 GeV
T2  - arXiv
N2  - We report a new measurement of transverse single-spin asymmetries for dijet production in collisions of polarized protons at s√ = 200 GeV. Possible correlations between the proton spin and the transverse momenta of its partons, mutually orthogonal, with each perpendicular to the proton momentum direction, are probed at high Q2 ≈160 GeV2. The associated Sivers observable ⟨kT⟩, the average parton transverse momentum, is extracted using simple kinematics. Nonzero Sivers effects are observed for the first time in proton-proton collisions, but only when the jets are sorted by their net charge, which enhances the u- or d-quark contributions to separate data samples. This also enables a determination of the individual partonic contributions to the observed asymmetries.
Y1  - 2023
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/86168
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-861686
UR  - https://arxiv.org/abs/2305.10359v1
IS  - 2305.10359v1
PB  - arXiv
ER  -