TY - JOUR
T1 - Azimuthal transverse single-spin asymmetries of inclusive jets and identified hadrons within jets from polarized pp collisions at s =200 GeV
AU - Abdallah, M. S.
AU - Aboona, B. E.
AU - Adam, J.
AU - Adamczyk, L.
AU - Kabana, S.
AU - STAR Collaboration
N1 - Publisher Copyright:
© 2022 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 - 2022/10/1
Y1 - 2022/10/1
N2 - The STAR Collaboration reports measurements of the transverse single-spin asymmetries, AN, for inclusive jets and identified "hadrons within jets"production at midrapidity from transversely polarized pp collisions at s=200 GeV, based on data recorded in 2012 and 2015. The inclusive jet asymmetry measurements include AN for inclusive jets and AN for jets containing a charged pion carrying a momentum fraction z>0.3 of the jet momentum. The identified hadron within jet asymmetry measurements include the Collins effect for charged pions, kaons, and protons, and the Collins-like effect for charged pions. The measured asymmetries are determined for several distinct kinematic regions characterized by the jet transverse momentum pT and pseudorapidity η, as well as the hadron momentum fraction z and momentum transverse to the jet axis jT. These results probe higher momentum scales (Q2 up to ∼900 GeV2) than current, semi-inclusive deep-inelastic scattering measurements, and they provide new constraints on quark transversity in the proton and enable tests of evolution, universality, and factorization breaking in the transverse-momentum-dependent formalism.
AB - The STAR Collaboration reports measurements of the transverse single-spin asymmetries, AN, for inclusive jets and identified "hadrons within jets"production at midrapidity from transversely polarized pp collisions at s=200 GeV, based on data recorded in 2012 and 2015. The inclusive jet asymmetry measurements include AN for inclusive jets and AN for jets containing a charged pion carrying a momentum fraction z>0.3 of the jet momentum. The identified hadron within jet asymmetry measurements include the Collins effect for charged pions, kaons, and protons, and the Collins-like effect for charged pions. The measured asymmetries are determined for several distinct kinematic regions characterized by the jet transverse momentum pT and pseudorapidity η, as well as the hadron momentum fraction z and momentum transverse to the jet axis jT. These results probe higher momentum scales (Q2 up to ∼900 GeV2) than current, semi-inclusive deep-inelastic scattering measurements, and they provide new constraints on quark transversity in the proton and enable tests of evolution, universality, and factorization breaking in the transverse-momentum-dependent formalism.
UR - https://www.scopus.com/pages/publications/85142532949
U2 - 10.1103/PhysRevD.106.072010
DO - 10.1103/PhysRevD.106.072010
M3 - Article
AN - SCOPUS:85142532949
SN - 2470-0010
VL - 106
JO - Physical Review D
JF - Physical Review D
IS - 7
ER -