Measurement of the Transverse Single-Spin Asymmetry in p^{↑}+p→W^{±}/Z^{0} at RHIC

L Adamczyk; J K Adkins; G Agakishiev; M M Aggarwal; Z Ahammed; I Alekseev; A Aparin; D Arkhipkin; E C Aschenauer; A Attri; G S Averichev; X Bai; V Bairathi; A Banerjee; R Bellwied; A Bhasin; A K Bhati; P Bhattarai; J Bielcik; J Bielcikova; L C Bland; I G Bordyuzhin; J Bouchet; J D Brandenburg; A V Brandin; I Bunzarov; J Butterworth; H Caines; M Calderón de la Barca Sánchez; J M Campbell; D Cebra; I Chakaberia; P Chaloupka; Z Chang; S Chattopadhyay; X Chen; J H Chen; J Cheng; M Cherney; W Christie; G Contin; H J Crawford; S Das; L C De Silva; R R Debbe; T G Dedovich; J Deng; A A Derevschikov; B di Ruzza; L Didenko; C Dilks; X Dong; J L Drachenberg; J E Draper; C M Du; L E Dunkelberger; J C Dunlop; L G Efimov; J Engelage; G Eppley; R Esha; O Evdokimov; O Eyser; R Fatemi; S Fazio; P Federic; J Fedorisin; Z Feng; P Filip; Y Fisyak; C E Flores; L Fulek; C A Gagliardi; D Garand; F Geurts; A Gibson; M Girard; L Greiner; D Grosnick; D S Gunarathne; Y Guo; A Gupta; S Gupta; W Guryn; A Hamad; A Hamed; R Haque; J W Harris; L He; S Heppelmann; S Heppelmann; A Hirsch; G W Hoffmann; D J Hofman; S Horvat; X Huang; H Z Huang; B Huang; T Huang; P Huck; T J Humanic; G Igo; W W Jacobs; H Jang; A Jentsch; J Jia; K Jiang; E G Judd; S Kabana; D Kalinkin; K Kang; K Kauder; H W Ke; D Keane; A Kechechyan; Z H Khan; D P Kikoła; I Kisel; A Kisiel; L Kochenda; D D Koetke; L K Kosarzewski; A F Kraishan; P Kravtsov; K Krueger; L Kumar; M A C Lamont; J M Landgraf; K D Landry; J Lauret; A Lebedev; R Lednicky; J H Lee; C Li; Y Li; W Li; X Li; X Li; T Lin; M A Lisa; F Liu; T Ljubicic; W J Llope; M Lomnitz; R S Longacre; X Luo; R Ma; L Ma; G L Ma; Y G Ma; N Magdy; R Majka; A Manion; S Margetis; C Markert; D McDonald; K Meehan; J C Mei; N G Minaev; S Mioduszewski; D Mishra; B Mohanty; M M Mondal; D A Morozov; M K Mustafa; B K Nandi; Md Nasim; T K Nayak; G Nigmatkulov; T Niida; L V Nogach; S Y Noh; J Novak; S B Nurushev; G Odyniec; A Ogawa; K Oh; V A Okorokov; D Olvitt; B S Page; R Pak; Y X Pan; Y Pandit; Y Panebratsev; B Pawlik; H Pei; C Perkins; P Pile; J Pluta; K Poniatowska; J Porter; M Posik; A M Poskanzer; N K Pruthi; J Putschke; H Qiu; A Quintero; S Ramachandran; R Raniwala; S Raniwala; R L Ray; H G Ritter; J B Roberts; O V Rogachevskiy; J L Romero; A Roy; L Ruan; J Rusnak; O Rusnakova; N R Sahoo; P K Sahu; I Sakrejda; S Salur; J Sandweiss; A Sarkar; J Schambach; R P Scharenberg; A M Schmah; W B Schmidke; N Schmitz; J Seger; P Seyboth; N Shah; E Shahaliev; P V Shanmuganathan; M Shao; M K Sharma; B Sharma; W Q Shen; Z Shi; S S Shi; Q Y Shou; E P Sichtermann; R Sikora; M Simko; S Singha; M J Skoby; D Smirnov; N Smirnov; W Solyst; L Song; P Sorensen; H M Spinka; B Srivastava; T D S Stanislaus; M Stepanov; R Stock; M Strikhanov; B Stringfellow; M Sumbera; B Summa; Y Sun; Z Sun; X M Sun; B Surrow; D N Svirida; A H Tang; Z Tang; T Tarnowsky; A Tawfik; J Thäder; J H Thomas; A R Timmins; D Tlusty; T Todoroki; M Tokarev; S Trentalange; R E Tribble; P Tribedy; S K Tripathy; O D Tsai; T Ullrich; D G Underwood; I Upsal; G Van Buren; G van Nieuwenhuizen; M Vandenbroucke; R Varma; A N Vasiliev; R Vertesi; F Videbæk; S Vokal; S A Voloshin; A Vossen; J S Wang; Y Wang; F Wang; Y Wang; H Wang; G Wang; J C Webb; G Webb; L Wen; G D Westfall; H Wieman; S W Wissink; R Witt; Y Wu; Z G Xiao; X Xie; W Xie; K Xin; N Xu; Y F Xu; Z Xu; Q H Xu; J Xu; H Xu; Q Yang; Y Yang; S Yang; Y Yang; C Yang; Y Yang; Z Ye; Z Ye; P Yepes; L Yi; K Yip; I-K Yoo; N Yu; H Zbroszczyk; W Zha; S Zhang; Z Zhang; S Zhang; J B Zhang; Y Zhang; J Zhang; J Zhang; X P Zhang; J Zhao; C Zhong; L Zhou; X Zhu; Y Zoulkarneeva; M Zyzak; STAR Collaboration

doi:10.1103/PhysRevLett.116.132301

Measurement of the Transverse Single-Spin Asymmetry in p^{↑}+p→W^{±}/Z^{0} at RHIC

Phys Rev Lett. 2016 Apr 1;116(13):132301. doi: 10.1103/PhysRevLett.116.132301. Epub 2016 Apr 1.

Authors

L Adamczyk¹, J K Adkins², G Agakishiev³, M M Aggarwal⁴, Z Ahammed⁵, I Alekseev⁶, A Aparin³, D Arkhipkin⁷, E C Aschenauer⁷, A Attri⁴, G S Averichev³, X Bai⁸, V Bairathi⁹, A Banerjee⁵, R Bellwied¹⁰, A Bhasin¹¹, A K Bhati⁴, P Bhattarai¹², J Bielcik¹³, J Bielcikova¹⁴, L C Bland⁷, I G Bordyuzhin⁶, J Bouchet¹⁵, J D Brandenburg¹⁶, A V Brandin¹⁷, I Bunzarov³, J Butterworth¹⁶, H Caines¹⁸, M Calderón de la Barca Sánchez¹⁹, J M Campbell²⁰, D Cebra¹⁹, I Chakaberia⁷, P Chaloupka¹³, Z Chang²¹, S Chattopadhyay⁵, X Chen²², J H Chen²³, J Cheng²⁴, M Cherney²⁵, W Christie⁷, G Contin²⁶, H J Crawford²⁷, S Das²⁸, L C De Silva²⁵, R R Debbe⁷, T G Dedovich³, J Deng²⁹, A A Derevschikov³⁰, B di Ruzza⁷, L Didenko⁷, C Dilks³¹, X Dong²⁶, J L Drachenberg³², J E Draper¹⁹, C M Du²², L E Dunkelberger³³, J C Dunlop⁷, L G Efimov³, J Engelage²⁷, G Eppley¹⁶, R Esha³³, O Evdokimov³⁴, O Eyser⁷, R Fatemi², S Fazio⁷, P Federic¹⁴, J Fedorisin³, Z Feng⁸, P Filip³, Y Fisyak⁷, C E Flores¹⁹, L Fulek¹, C A Gagliardi²¹, D Garand³⁵, F Geurts¹⁶, A Gibson³², M Girard³⁶, L Greiner²⁶, D Grosnick³², D S Gunarathne³⁷, Y Guo³⁸, A Gupta¹¹, S Gupta¹¹, W Guryn⁷, A Hamad¹⁵, A Hamed²¹, R Haque⁹, J W Harris¹⁸, L He³⁵, S Heppelmann³¹, S Heppelmann¹⁹, A Hirsch³⁵, G W Hoffmann¹², D J Hofman³⁴, S Horvat¹⁸, X Huang²⁴, H Z Huang³³, B Huang³⁴, T Huang³⁹, P Huck⁸, T J Humanic²⁰, G Igo³³, W W Jacobs⁴⁰, H Jang⁴¹, A Jentsch¹², J Jia⁷, K Jiang³⁸, E G Judd²⁷, S Kabana¹⁵, D Kalinkin⁴⁰, K Kang²⁴, K Kauder⁴², H W Ke⁷, D Keane¹⁵, A Kechechyan³, Z H Khan³⁴, D P Kikoła³⁶, I Kisel⁴³, A Kisiel³⁶, L Kochenda¹⁷, D D Koetke³², L K Kosarzewski³⁶, A F Kraishan³⁷, P Kravtsov¹⁷, K Krueger⁴⁴, L Kumar⁴, M A C Lamont⁷, J M Landgraf⁷, K D Landry³³, J Lauret⁷, A Lebedev⁷, R Lednicky³, J H Lee⁷, C Li³⁸, Y Li²⁴, W Li²³, X Li³⁸, X Li³⁷, T Lin⁴⁰, M A Lisa²⁰, F Liu⁸, T Ljubicic⁷, W J Llope⁴², M Lomnitz¹⁵, R S Longacre⁷, X Luo⁸, R Ma⁷, L Ma²³, G L Ma²³, Y G Ma²³, N Magdy⁴⁵, R Majka¹⁸, A Manion²⁶, S Margetis¹⁵, C Markert¹², D McDonald¹⁰, K Meehan¹⁹, J C Mei²⁹, N G Minaev³⁰, S Mioduszewski²¹, D Mishra⁹, B Mohanty⁹, M M Mondal²¹, D A Morozov³⁰, M K Mustafa²⁶, B K Nandi⁴⁶, Md Nasim³³, T K Nayak⁵, G Nigmatkulov¹⁷, T Niida⁴², L V Nogach³⁰, S Y Noh⁴¹, J Novak⁴⁷, S B Nurushev³⁰, G Odyniec²⁶, A Ogawa⁷, K Oh⁴⁸, V A Okorokov¹⁷, D Olvitt³⁷, B S Page⁷, R Pak⁷, Y X Pan³³, Y Pandit³⁴, Y Panebratsev³, B Pawlik⁴⁹, H Pei⁸, C Perkins²⁷, P Pile⁷, J Pluta³⁶, K Poniatowska³⁶, J Porter²⁶, M Posik³⁷, A M Poskanzer²⁶, N K Pruthi⁴, J Putschke⁴², H Qiu²⁶, A Quintero¹⁵, S Ramachandran², R Raniwala⁵⁰, S Raniwala⁵⁰, R L Ray¹², H G Ritter²⁶, J B Roberts¹⁶, O V Rogachevskiy³, J L Romero¹⁹, A Roy⁵, L Ruan⁷, J Rusnak¹⁴, O Rusnakova¹³, N R Sahoo²¹, P K Sahu²⁸, I Sakrejda²⁶, S Salur²⁶, J Sandweiss¹⁸, A Sarkar⁴⁶, J Schambach¹², R P Scharenberg³⁵, A M Schmah²⁶, W B Schmidke⁷, N Schmitz⁵¹, J Seger²⁵, P Seyboth⁵¹, N Shah²³, E Shahaliev³, P V Shanmuganathan¹⁵, M Shao³⁸, M K Sharma¹¹, B Sharma⁴, W Q Shen²³, Z Shi²⁶, S S Shi⁸, Q Y Shou²³, E P Sichtermann²⁶, R Sikora¹, M Simko¹⁴, S Singha¹⁵, M J Skoby⁴⁰, D Smirnov⁷, N Smirnov¹⁸, W Solyst⁴⁰, L Song¹⁰, P Sorensen⁷, H M Spinka⁴⁴, B Srivastava³⁵, T D S Stanislaus³², M Stepanov³⁵, R Stock⁴³, M Strikhanov¹⁷, B Stringfellow³⁵, M Sumbera¹⁴, B Summa³¹, Y Sun³⁸, Z Sun²², X M Sun⁸, B Surrow³⁷, D N Svirida⁶, A H Tang⁷, Z Tang³⁸, T Tarnowsky⁴⁷, A Tawfik⁵², J Thäder²⁶, J H Thomas²⁶, A R Timmins¹⁰, D Tlusty¹⁶, T Todoroki⁷, M Tokarev³, S Trentalange³³, R E Tribble²¹, P Tribedy⁷, S K Tripathy²⁸, O D Tsai³³, T Ullrich⁷, D G Underwood⁴⁴, I Upsal²⁰, G Van Buren⁷, G van Nieuwenhuizen⁷, M Vandenbroucke³⁷, R Varma⁴⁶, A N Vasiliev³⁰, R Vertesi¹⁴, F Videbæk⁷, S Vokal³, S A Voloshin⁴², A Vossen⁴⁰, J S Wang²², Y Wang²⁴, F Wang³⁵, Y Wang⁸, H Wang⁷, G Wang³³, J C Webb⁷, G Webb⁷, L Wen³³, G D Westfall⁴⁷, H Wieman²⁶, S W Wissink⁴⁰, R Witt⁵³, Y Wu¹⁵, Z G Xiao²⁴, X Xie³⁸, W Xie³⁵, K Xin¹⁶, N Xu²⁶, Y F Xu²³, Z Xu⁷, Q H Xu²⁹, J Xu⁸, H Xu²², Q Yang³⁸, Y Yang³⁹, S Yang³⁸, Y Yang²², C Yang³⁸, Y Yang⁸, Z Ye³⁴, Z Ye³⁴, P Yepes¹⁶, L Yi¹⁸, K Yip⁷, I-K Yoo⁴⁸, N Yu⁸, H Zbroszczyk³⁶, W Zha³⁸, S Zhang²³, Z Zhang²³, S Zhang³⁸, J B Zhang⁸, Y Zhang³⁸, J Zhang²⁹, J Zhang²², X P Zhang²⁴, J Zhao³⁵, C Zhong²³, L Zhou³⁸, X Zhu²⁴, Y Zoulkarneeva³, M Zyzak⁴³; STAR Collaboration

Affiliations

¹ AGH University of Science and Technology, FPACS, Cracow 30-059, Poland.
² University of Kentucky, Lexington, Kentucky 40506-0055.
³ Joint Institute for Nuclear Research, Dubna 141 980, Russia.
⁴ Panjab University, Chandigarh 160014, India.
⁵ Variable Energy Cyclotron Centre, Kolkata 700064, India.
⁶ Alikhanov Institute for Theoretical and Experimental Physics, Moscow 117218, Russia.
⁷ Brookhaven National Laboratory, Upton, New York 11973.
⁸ Central China Normal University, Wuhan, Hubei 430079.
⁹ National Institute of Science Education and Research, Bhubaneswar 751005, India.
¹⁰ University of Houston, Houston, Texas 77204.
¹¹ University of Jammu, Jammu 180001, India.
¹² University of Texas, Austin, Texas 78712.
¹³ Czech Technical University in Prague, FNSPE, Prague 115 19, Czech Republic.
¹⁴ Nuclear Physics Institute AS CR, 250 68 Prague, Czech Republic.
¹⁵ Kent State University, Kent, Ohio 44242.
¹⁶ Rice University, Houston, Texas 77251.
¹⁷ National Research Nuclear University MEPhI, Moscow 115409, Russia.
¹⁸ Yale University, New Haven, Connecticut 06520.
¹⁹ University of California, Davis, California 95616.
²⁰ Ohio State University, Columbus, Ohio 43210.
²¹ Texas A&M University, College Station, Texas 77843.
²² Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000.
²³ Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800.
²⁴ Tsinghua University, Beijing 100084.
²⁵ Creighton University, Omaha, Nebraska 68178.
²⁶ Lawrence Berkeley National Laboratory, Berkeley, California 94720.
²⁷ University of California, Berkeley, California 94720.
²⁸ Institute of Physics, Bhubaneswar 751005, India.
²⁹ Shandong University, Jinan, Shandong 250100.
³⁰ Institute of High Energy Physics, Protvino 142281, Russia.
³¹ Pennsylvania State University, University Park, Pennsylvania 16802.
³² Valparaiso University, Valparaiso, Indiana 46383.
³³ University of California, Los Angeles, California 90095.
³⁴ University of Illinois at Chicago, Chicago, Illinois 60607.
³⁵ Purdue University, West Lafayette, Indiana 47907.
³⁶ Warsaw University of Technology, Warsaw 00-661, Poland.
³⁷ Temple University, Philadelphia, Pennsylvania 19122.
³⁸ University of Science and Technology of China, Hefei, Anhui 230026.
³⁹ National Cheng Kung University, Tainan 70101.
⁴⁰ Indiana University, Bloomington, Indiana 47408.
⁴¹ Korea Institute of Science and Technology Information, Daejeon 305-701, Korea.
⁴² Wayne State University, Detroit, Michigan 48201.
⁴³ Frankfurt Institute for Advanced Studies FIAS, Frankfurt 60438, Germany.
⁴⁴ Argonne National Laboratory, Argonne, Illinois 60439.
⁴⁵ State University of New York, Stony Brook, New York 11794.
⁴⁶ Indian Institute of Technology, Mumbai 400076, India.
⁴⁷ Michigan State University, East Lansing, Michigan 48824.
⁴⁸ Pusan National University, Pusan 46241, Korea.
⁴⁹ Institute of Nuclear Physics PAN, Cracow 31-342, Poland.
⁵⁰ University of Rajasthan, Jaipur 302004, India.
⁵¹ Max-Planck-Institut für Physik, Munich 80805, Germany.
⁵² World Laboratory for Cosmology and Particle Physics (WLCAPP), Cairo 11571, Egypt.
⁵³ United States Naval Academy, Annapolis, Maryland 21402.

PMID: 27081970
DOI: 10.1103/PhysRevLett.116.132301

Abstract

We present the measurement of the transverse single-spin asymmetry of weak boson production in transversely polarized proton-proton collisions at sqrt[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.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.