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Measurement of the Transverse Single-Spin Asymmetry in p ↑+p →w± /Z0 at RHIC

  • Author(s): Adamczyk, L
  • Adkins, JK
  • Agakishiev, G
  • Aggarwal, MM
  • Ahammed, Z
  • Alekseev, I
  • Aparin, A
  • Arkhipkin, D
  • Aschenauer, EC
  • Attri, A
  • Averichev, GS
  • Bai, X
  • Bairathi, V
  • Banerjee, A
  • Bellwied, R
  • Bhasin, A
  • Bhati, AK
  • Bhattarai, P
  • Bielcik, J
  • Bielcikova, J
  • Bland, LC
  • Bordyuzhin, IG
  • Bouchet, J
  • Brandenburg, JD
  • Brandin, AV
  • Bunzarov, I
  • Butterworth, J
  • Caines, H
  • Calderón De La Barca Sánchez, M
  • Campbell, JM
  • Cebra, D
  • Chakaberia, I
  • Chaloupka, P
  • Chang, Z
  • Chattopadhyay, S
  • Chen, X
  • Chen, JH
  • Cheng, J
  • Cherney, M
  • Christie, W
  • Contin, G
  • Crawford, HJ
  • Das, S
  • De Silva, LC
  • Debbe, RR
  • Dedovich, TG
  • Deng, J
  • Derevschikov, AA
  • Di Ruzza, B
  • Didenko, L
  • Dilks, C
  • Dong, X
  • Drachenberg, JL
  • Draper, JE
  • Du, CM
  • Dunkelberger, LE
  • Dunlop, JC
  • Efimov, LG
  • Engelage, J
  • Eppley, G
  • Esha, R
  • Evdokimov, O
  • Eyser, O
  • Fatemi, R
  • Fazio, S
  • Federic, P
  • Fedorisin, J
  • Feng, Z
  • Filip, P
  • Fisyak, Y
  • Flores, CE
  • Fulek, L
  • Gagliardi, CA
  • Garand, D
  • Geurts, F
  • Gibson, A
  • Girard, M
  • Greiner, L
  • Grosnick, D
  • Gunarathne, DS
  • Guo, Y
  • Gupta, A
  • Gupta, S
  • Guryn, W
  • Hamad, A
  • Hamed, A
  • Haque, R
  • Harris, JW
  • He, L
  • Heppelmann, S
  • Heppelmann, S
  • Hirsch, A
  • Hoffmann, GW
  • Hofman, DJ
  • Horvat, S
  • Huang, X
  • Huang, HZ
  • Huang, B
  • Huang, T
  • Huck, P
  • et al.

Published Web Location

http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.132301
No data is associated with this publication.
Abstract

© 2016 American Physical Society. We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at s=500 GeV by the STAR experiment at RHIC. The measured observable is sensitive to the Sivers function, one of the transverse-momentum-dependent parton distribution functions, which is predicted to have the opposite sign in proton-proton collisions from that observed in deep inelastic lepton-proton scattering. These data provide the first experimental investigation of the nonuniversality of the Sivers function, fundamental to our understanding of QCD.

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