Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s=200  GeV

M S Abdallah ,J Zhao,H Wieman,M Shao,W Zha,Y Zhang,A Francisco,M Nie,Y Liang,X Ju,R Majka,R Lacey,V Prozorova,Z Zhang,L Ruan,H Qiu,M Chevalier,Y Yang,Y Shi,L Wen,Y Ji,J Engelage,G Eppley,P Bhagat,Y Lin,W He,F Seck,Z Ahammed,D Zhang,S Lan,X Chen,P Seyboth,G Ponimatkin,D Tlusty,I Vassiliev,M Calderón De La Barca Sánchez,M Daugherity,G Wang,S Chattopadhyay,J Putschke,I Upsal,Y Xu,M Zyzak,B Summa,P Federic,Y Han,E Shahaliev,G Nigmatkulov,A Hamed,P Wang,Z Tang,J Lauret,T Truhlar,K Kauder,B Surrow,T Ullrich,W Li,M Csanád,I Mooney,T Shao,R Pak,X Huang,V Verkest,J Cheng,A Bhasin,P Parfenov,F-H Chang,K Yip,X Liang,S Singha,N Schmitz,Z Chang,A Ewigleben,C Kim,Y Hu,D Isenhower,Y Feng,X Sun,N Raha,A Ogawa,W Xie,A Lebedev,S Mioduszewski,A Attri,S Esumi,W Guryn,X Zhu,H Pei,V Bairathi,D Chen,R Bellwied,P Liu,N Elsey,C Jena,S Kabana,M Tokarev,S Yang,B Stringfellow,Y Li,T Nonaka,Z Xu,N Herrmann,N Xu,F Videbæk,J Seger,I Bunzarov,A Quintero,J Chen,P Chaloupka,I Alekseev,G Van Buren,H Xu,D Cebra,M Posik,R Fatemi,Y Wang,A Behera,L Pinsky,M Stefaniak,S Zhang,Y Liu,N Smirnov,A Taranenko,S Harabasz,T Huang,S Trentalange,I Kisel,X Dong,F Liu,B Kimelman,W Baker,I Chakaberia,R Witt,L Di Carlo,G Odyniec,R Seto,A Dhamija,N Magdy,P Sorensen,H Sako,L Kochenda,G Xie,L Adamczyk,M Simko,O Eyser,R Sikora,H Harrison,Md Nasim,D Keane,S He,H Liu,K Nayak,H Caines,T Lin,J Porter,Y Huang,Z Tu,W Christie,B Pawlik,Y Panebratsev,A Kechechyan,X Gou,T Niida,S Heppelmann,D Grosnick,B Srivastava,X Luo,C Zhou,L Yi,K Kang,G Agakishiev,C Yang,S Kagamaster,S Salur,J Sandweiss,D Mallick,H Zbroszczyk,X Li,D Kincses,R Ma,L Holub,J Pluta,N Chankova-Bunzarova,D Kalinkin,Q Yang,R Reed,Y Sun,J Jia,P Tribedy,I Aggarwal,Y Wu,T Tarnowsky,C Zhang,C Markert,R Nishitani,Y Yu,T Galatyuk,D Kapukchyan,T Todoroki,K Jiang,Y Fisyak,A Gupta,Z Liu,E Loyd,M Strikhanov,E Finch,J Butterworth,K Gopal,Z Chen,L Kumar,R Licenik,C Li,B Xi,A Pandav,M Sergeeva,P Filip,A Jentsch,A Aparin,D Neff,A Gibson,X Liu,Y Söhngen,S Choudhury,O Evdokimov,C Racz,X Chu,S Margetis,A Mukherjee,T Liu,Z Ye,N Shah,Z Wang,W Solyst,F Wang,L Didenko,M Robotkova,A Chatterjee,C Perkins,A Kiselev,B Mohanty,S Fazio,J Adam,H Z Huang ,R L Ray ,J M Landgraf ,H.g Ritter ,R E Tribble ,J H Lee ,S Vokál ,S K Radhakrishnan ,J D Nam ,P Szymański ,D B Nemes ,J R Adams ,Vitaly Okorokov ,D M Anderson ,N S Lukow ,A Vasiliev ,G D Westfall ,A S Nunes ,J L Romero ,Eric A Hoffman ,Qingyang Xu ,Z W Sweger ,C A Gagliardi ,D G Underwood ,Z J Zhang ,A A Derevschikov ,P V Shanmuganathan ,D N Svirida ,B S Page ,T Ljubičić ,M Šumbera ,A A P Suaide ,W B Schmidke ,Ł Fulek ,Yang He ,M J Skoby ,П Кравцов ,A V Brandin ,F G Atetalla ,X Cai ,J Mazer ,E G Judd ,Santosh Kumar ,T G Dedovich ,C A Tomkiel ,M A Lisa ,B R Pokhrel ,T J Humanic ,R L Pintér ,D Y Shen ,Raghav Kunnawalkam Elayavalli ,J L Drachenberg ,S K Tripathy ,G S Averichev ,M L Kabir ,Ashok Kumar Pandey ,S B Oh ,C.d Fu ,Y G ,M Żurek ,E P Sichtermann ,X P Zhang ,Z H Zhu ,B A Trzeciak ,Y H Leung ,J Fedorišin ,N G Minaev ,M D Harasty ,N Sahoo ,Д А Морозов ,H M Spinka ,L K Kosarzewski ,J Ball ,C Feng ,S A Voloshin ,Susumu Sato ,J S Wang ,O V Rogachevskiy ,A G Knospe ,Y V Khyzhniak ,A I Sheikh ,J D Brandenburg ,J C Webb ,M Przybycień ,Nirmal Ghimire ,J W Harris ,E C Aschenauer ,J H Kwasizur ,H J Crawford ,S S Shi ,J Bielčík ,A R Timmins ,M M Mondal ,M I Nagy ,J Rusňák ,J K Adkins ,Xiao Zhang ,D P Kikoła ,X He ,D Pawłowska ,B R Schweid ,Muhammad Usman Ashraf ,Lianliang Ma ,R S Longacre ,T D S Stanislaus ,W W Jacobs ,H S Matis ,R Lednický ,J Vaněk ,F J M Geurts ,A H Tang ,N K Pruthi ,J H Wu ,J M Nelson ,J B Singh ,J C Dunlop ,J H Thomas ,A I Hamad ,B K Chan ,S W Wissink ,J H Chen ,Q Shou ,David J Stewart ,W J Llope ,M M Aggarwal ,K N Barish ,L V Nogach ,S Huang ,O D Tsai ,I G Bordyuzhin ,L Kramárik ,I M Deppner ,F M Fawzi ,P C Weidenkaff ,H W Ke ,J Bielčíková

doi:10.1103/physrevd.103.l091103

Longitudinal double-spin asymmetry for inclusive jet and dijet production in polarized proton collisions at s=200 GeV

M S Abdallah , J Zhao + Show 376 more

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Journal: Physical Review D	Publication Date: May 26, 2021
Citations: 19	License type: CC BY 4.0

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We report high-precision measurements of the longitudinal double-spin asymmetry, ALL, for midrapidity inclusive jet and dijet production in polarized pp collisions at a center-of-mass energy of s=200 GeV. The new inclusive jet data are sensitive to the gluon helicity distribution, Δg(x,Q2), for gluon momentum fractions in the range from x≃0.05 to x≃0.5, while the new dijet data provide further constraints on the x dependence of Δg(x,Q2). The results are in good agreement with previous measurements at s=200 GeV and with recent theoretical evaluations of prior world data. Our new results have better precision and thus strengthen the evidence that Δg(x,Q2) is positive for x>0.05.Received 9 March 2021Accepted 28 April 2021DOI:https://doi.org/10.1103/PhysRevD.103.L091103Published by the American Physical Society under the terms of the 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.Published by the American Physical SocietyPhysics Subject Headings (PhySH)Research AreasHadron-hadron interactionsPerturbative QCDQuark & gluon jetsPhysical SystemsGluonsProtonsPropertiesPolarizationSpinTechniquesElectromagnetic calorimetersHadron collidersTime-projection chambersNuclear PhysicsParticles & Fields

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