TY - JOUR
T1 - Measurements of the Z0/γ⁎ cross section and transverse single spin asymmetry in 510 GeV p + p collisions
AU - Abdulhamid, M. I.
AU - Aboona, B. E.
AU - Adam, J.
AU - Adamczyk, L.
AU - Adams, J. R.
AU - Aggarwal, I.
AU - Aggarwal, M. M.
AU - Ahammed, Z.
AU - Aschenauer, E. C.
AU - Aslam, S.
AU - Atchison, J.
AU - Bairathi, V.
AU - Ball Cap, J. G.
AU - Barish, K.
AU - Bellwied, R.
AU - Bhagat, P.
AU - Bhasin, A.
AU - Bhatta, S.
AU - Bhosale, S. R.
AU - Bielcik, J.
AU - Bielcikova, J.
AU - Brandenburg, J. D.
AU - Broodo, C.
AU - Cai, X. Z.
AU - Caines, H.
AU - Calderón de la Barca Sánchez, M.
AU - Cebra, D.
AU - Ceska, J.
AU - Chakaberia, I.
AU - Chaloupka, P.
AU - Chan, B. K.
AU - Chang, Z.
AU - Chatterjee, A.
AU - Chen, D.
AU - Chen, J.
AU - Chen, J. H.
AU - Chen, Z.
AU - Cheng, J.
AU - Cheng, Y.
AU - Choudhury, S.
AU - Christie, W.
AU - Chu, X.
AU - Crawford, H. J.
AU - Csanád, M.
AU - Dale-Gau, G.
AU - Das, A.
AU - Deppner, I. M.
AU - Dhamija, A.
AU - Dixit, P.
AU - Fatemi, R.
N1 - Publisher Copyright:
© 2024
PY - 2024/7
Y1 - 2024/7
N2 - The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 is sensitive to one of the polarized TMDs, the Sivers function, which is predicted to have the opposite sign in p+p →W/Z+X from that which enters in semi-inclusive deep inelastic scattering. In this Letter, the STAR Collaboration reports the first measurement of the Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.
AB - The differential cross section for Z0 production, measured as a function of the boson's transverse momentum (pT), provides important constraints on the evolution of the transverse momentum dependent parton distribution functions (TMDs). The transverse single spin asymmetry (TSSA) of the Z0 is sensitive to one of the polarized TMDs, the Sivers function, which is predicted to have the opposite sign in p+p →W/Z+X from that which enters in semi-inclusive deep inelastic scattering. In this Letter, the STAR Collaboration reports the first measurement of the Z0/γ⁎ differential cross section as a function of its pT in p+p collisions at a center-of-mass energy of 510 GeV, together with the Z0/γ⁎ total cross section. We also report the measurement of Z0/γ⁎ TSSA in transversely polarized p+p collisions at 510 GeV.
KW - Cross section
KW - Sivers function
KW - Transverse momentum dependent parton distribution functions (TMDs)
KW - Transverse single spin asymmetry (TSSA, A)
KW - Z
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U2 - 10.1016/j.physletb.2024.138715
DO - 10.1016/j.physletb.2024.138715
M3 - Article
AN - SCOPUS:85193980052
SN - 0370-2693
VL - 854
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 138715
ER -