/ hep-ex arXiv:1710.10215


Transverse spin-dependent azimuthal correlations of charged pion pairs measured in p$^\uparrow$+p collisions at $\sqrt{s}$ = 500 GeV


Adams, Joseph (Ohio State U., Columbus, Dept. Phys.) ; Agakishiev, Geydar (JINR, Dubna) ; Aggarwal, Madan (Panjab U., Chandigarh, Dept. Phys.) ; Ahammed, Zubayer (VECC, Calcutta) ; Alekseev, Igor (ITEP, Moscow) ; Anderson, Derek (TAMU, College Station Dept. Phys. Astron.) ; Aoyama, Ryo (U. Tsukuba, Inst. Phys.) ; Arkhipkin, Dmitry (Brookhaven Natl. Lab., Dept. Phys.) ; Ashraf, Muhammad Usman (Tsinghua U., Beijing) ; Attri, Anjali (Panjab U., Chandigarh, Dept. Phys.) ; Averichev, Georgy (JINR, Dubna) ; Bai, Xiaozhi (CCNU, Wuhan) ; Bairathi, Vipul (Bhubaneswar, NISER) ; Barish, Kenneth (UC, Riverside, Dept. Phys. Astron.) ; Behera, Arabinda (Stony Brook U., Dept. Phys. Astron.) ; Bellwied, Rene (U. Houston, Phys. Dept.) ; Bhasin, Anju (U. Jammu, Dept. Phys.) ; Bhati, Ashok (Panjab U., Chandigarh, Dept. Phys.) ; Bielcik, Jaroslav (CTU, Prague, FNSPE) ; Bielcikova, Jana (ASCR, Nucl. Phys. Inst., Rez.) ; Bland, Leslie (Brookhaven Natl. Lab., Dept. Phys.) ; Bordyuzhin, Igor (ITEP, Moscow) ; Brandenburg, James (Rice U., Dept. Phys. Astron.) ; Brandin, Andrei (NRNU MEPhI, Moscow) ; Brown, Daniel (Lehigh U., Dept. Phys.) ; Bryslawskyj, Jason (UC, Riverside, Dept. Phys. Astron.) ; Bunzarov, Ivan (JINR, Dubna) ; Caines, Helen (Yale U., Dept. Phys.) ; Calderon de la Barca Sanchez, Manuel (UC, Davis, Dept. Phys.) ; Campbell, John (Ohio State U., Columbus, Dept. Phys.) ; Cebra, Daniel (UC, Davis, Dept. Phys.) ; Chakaberia, Irakli (Brookhaven Natl. Lab., Dept. Phys.) ; Chaloupka, Petr (CTU, Prague, FNSPE) ; Chankova-Bunzarova, Nedialka (JINR, Dubna) ; Chatterjee, Arghya (VECC, Calcutta) ; Chattopadhyay, Subhasis (VECC, Calcutta) ; Chen, Jinhui (Shanghai Inst. Nucl. Res.) ; Chen, Xurong (IMP, Lanzhou, Inst. Mod. Phys.) ; Chen, Xiaolong (USTC, Hefei, DMP) ; Cheng, Jianping (Tsinghua U., Beijing) ; Cherney, Mike (Creighton U. Dept. Phys.) ; Christie, Bill (Brookhaven Natl. Lab., Dept. Phys.) ; Crawford, Hank (UC, Berkeley, SSL) ; Das, Sabita (CCNU, Wuhan) ; Dedovich, Tatiana (JINR, Dubna) ; Deng, Jian (Shandong U., Jinan) ; Deppner, Ingo (U. Heidelberg, Phys. Inst.) ; Derevschikov, Anatoly (IHEP, Serpukhov) ; Didenko, Lidia (Brookhaven Natl. Lab., Dept. Phys.) ; Dong, Xin (LBNL, Berkeley, Div. Phys.) ; Drachenberg, James (Lamar U.) ; Draper, James (UC, Davis, Dept. Phys.) ; Dunlop, James (Brookhaven Natl. Lab., Dept. Phys.) ; Efimov, Leonid (JINR, Dubna) ; Elsey, Nicholas (Wayne State U., Detroit, Dept. Phys. Astron.) ; Engelage, Jack (UC, Berkeley, SSL) ; Eppley, Geary (Rice U., Dept. Phys. Astron.) ; Esha, Roli (UCLA, Dept. Phys. Astron.) ; Esumi, ShinIchi (U. Tsukuba, Inst. Phys.) ; Evdokimov, Olga (U. Illinois, Chicago, Dept. Phys.) ; Ewigleben, Justin (Lehigh U., Dept. Phys.) ; Eyser, Oleg (Brookhaven Natl. Lab., Dept. Phys.) ; Fatemi, Renee (U. Kentucky, Lexington, Dept. Phys. Astron.) ; Federic, Pavol (ASCR, Nucl. Phys. Inst., Rez.) ; Federicova, Pavla (CTU, Prague, FNSPE) ; Fedorisin, Jan (JINR, Dubna) ; Filip, Peter (JINR, Dubna) ; Finch, Evan (Southern Connecticut State U., New Haven) ; Fisyak, Yuri (Brookhaven Natl. Lab., Dept. Phys.) ; Fujita, Jiro (Creighton U. Dept. Phys.) ; Fulek, Lukasz (AGH-UST, Cracow) ; Gagliardi, Carl (TAMU, College Station Dept. Phys. Astron.) ; Geurts, Frank (Rice U., Dept. Phys. Astron.) ; Grosnick, David (Valparaiso U., USA, Dept. Phys.) ; Gunarathne, Devika (Temple U., Dept. Phys.) ; Gupta, Anik (U. Jammu, Dept. Phys.) ; Guryn, Wlodek (Brookhaven Natl. Lab., Dept. Phys.) ; Hamad, Ayman (Kent State U., Dept. Phys.) ; Hamed, Ahmed (TAMU, College Station Dept. Phys. Astron.) ; Harlenderova, Alena (CTU, Prague, FNSPE) ; Harris, John (Yale U., Dept. Phys.) ; He, Liang (Purdue U., West Lafayette, Dept. Phys.) ; Heppelmann, Steven (Penn State U., University Park, Dept. Phys.) ; Heppelmann, Samuel (UC, Davis, Dept. Phys.) ; Herrmann, Norbert (U. Heidelberg, Phys. Inst.) ; Hirsch, Andy (Purdue U., West Lafayette, Dept. Phys.) ; Horvat, Stephen (Yale U., Dept. Phys.) ; Huang, Bingchu (U. Illinois, Chicago, Dept. Phys.) ; Huang, Huan (UCLA, Dept. Phys. Astron.) ; Huang, Te-Chuan (NCKU, Tainan, Dept. Phys.) ; Humanic, Tom (Ohio State U., Columbus, Dept. Phys.) ; Huo, Peng (Stony Brook U., Dept. Phys. Astron.) ; Igo, George (UCLA, Dept. Phys. Astron.) ; Jacobs, William (Indiana U., Bloomington, Dept. Phys.) ; Jentsch, Alexander (U. Texas, Austin, Dept. Phys.) ; Jia, Jiangyong (Brookhaven Natl. Lab., Dept. Phys.) ; Jiang, Kun (USTC, Hefei, DMP) ; Jowzaee, Sedigheh (Wayne State U., Detroit, Dept. Phys. Astron.) ; Judd, Eleanor (UC, Berkeley, SSL) ; Kabana, Sonya (Kent State U., Dept. Phys.) ; Kalinkin, Dmitry (Indiana U., Bloomington, Dept. Phys.) ; Kang, Kejun (Tsinghua U., Beijing) ; Kapukchyan, David (UC, Riverside, Dept. Phys. Astron.) ; Kauder, Kolja (Wayne State U., Detroit, Dept. Phys. Astron.) ; Ke, Hongwei (Brookhaven Natl. Lab., Dept. Phys.) ; Keane, Declan (Kent State U., Dept. Phys.) ; Kechechyan, Armen (JINR, Dubna) ; Kikola, Daniel (Warsaw U. of Tech., Fac. Phys.) ; Kim, Chong (UC, Riverside, Dept. Phys. Astron.) ; Kisel, Ivan (Goethe U., Frankfurt, FIAS) ; Kisiel, Adam (Warsaw U. of Tech., Fac. Phys.) ; Kochenda, Leonid (NRNU MEPhI, Moscow) ; Kocmanek, Martin (ASCR, Nucl. Phys. Inst., Rez.) ; Kollegger, Thorsten (Goethe U., Frankfurt, FIAS) ; Kosarzewski, Leszek (Warsaw U. of Tech., Fac. Phys.) ; Kraishan, Amani (Temple U., Dept. Phys.) ; Krauth, Luke (UC, Riverside, Dept. Phys. Astron.) ; Kravtsov, Peter (NRNU MEPhI, Moscow) ; Krueger, Keith (Argonne Natl. Lab., HEP Div.) ; Kulathunga, Nalinda (U. Houston, Phys. Dept.) ; Kumar, Lokesh (Panjab U., Chandigarh, Dept. Phys.) ; Kvapil, Jakub (CTU, Prague, FNSPE) ; Kwasizur, Joseph (Indiana U., Bloomington, Dept. Phys.) ; Lacey, Roy (Stony Brook U., Dept. Phys. Astron.) ; Landgraf, Jeffery (Brookhaven Natl. Lab., Dept. Phys.) ; Lauret, Jerome (Brookhaven Natl. Lab., Dept. Phys.) ; Lebedev, Alexei (Brookhaven Natl. Lab., Dept. Phys.) ; Lednicky, Richard (JINR, Dubna) ; Lee, Jeong-Hun (Brookhaven Natl. Lab., Dept. Phys.) ; Li, Wei (Shanghai Inst. Nucl. Res.) ; Li, Xin (USTC, Hefei, DMP) ; Li, Yuanjing (Tsinghua U., Beijing) ; Li, Cheng (USTC, Hefei, DMP) ; Lidrych, Jindrich (CTU, Prague, FNSPE) ; Lin, Ting (Indiana U., Bloomington, Dept. Phys.) ; Lisa, Mike (Ohio State U., Columbus, Dept. Phys.) ; Liu, Feng (CCNU, Wuhan) ; Liu, Yanfang (TAMU, College Station Dept. Phys. Astron.) ; Liu, Huanzhao (Indiana U., Bloomington, Dept. Phys.) ; Liu, Peifeng (Stony Brook U., Dept. Phys. Astron.) ; Ljubicic, Tonko (Brookhaven Natl. Lab., Dept. Phys.) ; Llope, WJ (Wayne State U., Detroit, Dept. Phys. Astron.) ; Longacre, Ron (Brookhaven Natl. Lab., Dept. Phys.) ; Luo, Siwei (U. Illinois, Chicago, Dept. Phys.) ; Luo, Xiaofeng (CCNU, Wuhan) ; Ma, Guo-Liang (Shanghai Inst. Nucl. Res.) ; Ma, Rongrong (Brookhaven Natl. Lab., Dept. Phys.) ; Ma, Long (Shanghai Inst. Nucl. Res.) ; Ma, Yu-Gang (Shanghai Inst. Nucl. Res.) ; Magdy Abdelwahab Abdelrahman, Niseem (Stony Brook U., Dept. Phys. Astron.) ; Majka, Richard (Yale U., Dept. Phys.) ; Mallick, Debasish (Bhubaneswar, NISER) ; Margetis, Spiros (Kent State U., Dept. Phys.) ; Markert, Christina (U. Texas, Austin, Dept. Phys.) ; Matis, Howard (LBNL, Berkeley, Div. Phys.) ; Mayes, David (UC, Riverside, Dept. Phys. Astron.) ; Meehan, Kathryn (UC, Davis, Dept. Phys.) ; Mei, Jincheng (Shandong U., Jinan) ; Miller, Zachariah (U. Illinois, Chicago, Dept. Phys.) ; Minaev, Nikolai (IHEP, Serpukhov) ; Mioduszewski, Saskia (TAMU, College Station Dept. Phys. Astron.) ; Mishra, Debadeepti (Bhubaneswar, NISER) ; Mohanty, Bedanga (Bhubaneswar, NISER) ; Mondal, Mriganka (Inst. Phys., Bhubaneswar) ; Morozov, Dmitry (IHEP, Serpukhov) ; Nasim, Md (UCLA, Dept. Phys. Astron.) ; Nemes, Daniel (Yale U., Dept. Phys.) ; Nie, Maowu (Shanghai Inst. Nucl. Res.) ; Niida, Takafumi (Wayne State U., Detroit, Dept. Phys. Astron.) ; Nogach, Larisa (IHEP, Serpukhov) ; Nonaka, Toshihiro (U. Tsukuba, Inst. Phys.) ; Nurushev, Sandibek (IHEP, Serpukhov) ; Odyniec, Grazyna (LBNL, Berkeley, Div. Phys.) ; Ogawa, Akio (Brookhaven Natl. Lab., Dept. Phys.) ; Oh, Kunsu (PNU, Pusan, Dept. Phys.) ; Okorokov, Vitalii (NRNU MEPhI, Moscow) ; Olvitt Jr, Daniel (Temple U., Dept. Phys.) ; Page, Brian (Brookhaven Natl. Lab., Dept. Phys.) ; Pak, Robert (Brookhaven Natl. Lab., Dept. Phys.) ; Pandit, Yadav (U. Illinois, Chicago, Dept. Phys.) ; Panebratsev, Yuri (JINR, Dubna) ; Pei, Hua (CCNU, Wuhan) ; Perkins, Chris (UC, Berkeley, SSL) ; Pluta, Jan (Warsaw U. of Tech., Fac. Phys.) ; Porter, Jeff (LBNL, Berkeley, Div. Phys.) ; Posik, Matthew (Temple U., Dept. Phys.) ; Pruthi, Navneet Kumar (Panjab U., Chandigarh, Dept. Phys.) ; Przybycien, Mariusz (AGH-UST, Cracow) ; Putschke, Joern (Wayne State U., Detroit, Dept. Phys. Astron.) ; Ray, Lanny (U. Texas, Austin, Dept. 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Astron.) ; Shah, Neha (Shanghai Inst. Nucl. Res.) ; Shahaliev, Ehtiram (JINR, Dubna) ; Shao, Ming (USTC, Hefei, DMP) ; Shi, Shusu (CCNU, Wuhan) ; Shou, Qi-Ye (Shanghai Inst. Nucl. Res.) ; Sichtermann, Ernst (LBNL, Berkeley, Div. Phys.) ; Sikora, Rafal (AGH-UST, Cracow) ; Simko, Miroslav (ASCR, Nucl. Phys. Inst., Rez.) ; Singha, Subhash (Kent State U., Dept. Phys.) ; Smirnov, Nikolai (Yale U., Dept. Phys.) ; Solyst, William (Indiana U., Bloomington, Dept. Phys.) ; Sorensen, Paul (Brookhaven Natl. Lab., Dept. Phys.) ; Spinka, Hal (Argonne Natl. Lab., HEP Div.) ; Srivastava, Brijesh (Purdue U., West Lafayette, Dept. Phys.) ; Stanislaus, Shirvel (Valparaiso U., USA, Dept. Phys.) ; Stewart, David (Yale U., Dept. Phys.) ; Strikhanov, Mikhail (NRNU MEPhI, Moscow) ; Stringfellow, Blair (Purdue U., West Lafayette, Dept. Phys.) ; Suaide, Alexandre Alarcon (USP, Sao Paulo, IFSC) ; Sugiura, Tetsuro (U. Tsukuba, Inst. Phys.) ; Sumbera, Michal (ASCR, Nucl. Phys. Inst., Rez.) ; Summa, Branden (Penn State U., University Park, Dept. Phys.) ; Sun, Xiangming (CCNU, Wuhan) ; Sun, Xu (CCNU, Wuhan) ; Sun, Yongjie (USTC, Hefei, DMP) ; Surrow, Bernd (Temple U., Dept. Phys.) ; Svirida, Dmitry (ITEP, Moscow) ; Tang, Zebo (USTC, Hefei, DMP) ; Tang, Aihong (Brookhaven Natl. Lab., Dept. Phys.) ; Taranenko, Arkadiy (NRNU MEPhI, Moscow) ; Tarnowsky, Terry (Michigan State U., East Lansing, NSCL) ; Tawfik, Abdel Nasser (WLCAPP, Cairo) ; Thomas, Jim (LBNL, Berkeley, Div. Phys.) ; Timmins, Anthony (U. Houston, Phys. Dept.) ; Tlusty, David (Rice U., Dept. Phys. Astron.) ; Todoroki, Takahito (Brookhaven Natl. Lab., Dept. Phys.) ; Tokarev, Michael (JINR, Dubna) ; Trentalange, Steven (UCLA, Dept. Phys. Astron.) ; Tribble, Robert (TAMU, College Station Dept. Phys. Astron.) ; Tribedy, Prithwish (Brookhaven Natl. Lab., Dept. Phys.) ; Tripathy, Srikanta Kumar (Inst. Phys., Bhubaneswar) ; Tsai, Oleg (UCLA, Dept. Phys. Astron.) ; Tu, Biao (CCNU, Wuhan) ; Ullrich, Thomas (Brookhaven Natl. Lab., Dept. Phys.) ; Underwood, Dave (Argonne Natl. Lab., HEP Div.) ; Upsal, Isaac (Ohio State U., Columbus, Dept. Phys.) ; Van Buren, Gene (Brookhaven Natl. Lab., Dept. Phys.) ; van Nieuwenhuizen, Gerrit (Brookhaven Natl. Lab., Dept. Phys.) ; Vasiliev, Alexander (IHEP, Serpukhov) ; Videbaek, Flemming (Brookhaven Natl. Lab., Dept. Phys.) ; Vokal, Stanislav (JINR, Dubna) ; Voloshin, Sergei (Wayne State U., Detroit, Dept. Phys. Astron.) ; Vossen, Anselm (Indiana U., Bloomington, Dept. Phys.) ; Wang, Gang (UCLA, Dept. Phys. Astron.) ; Wang, Fuqiang (Purdue U., West Lafayette, Dept. Phys.) ; Wang, Yi (Tsinghua U., Beijing) ; Wang, Yaping (CCNU, Wuhan) ; Webb, Jason (Brookhaven Natl. Lab., Dept. Phys.) ; Wen, Liwen (UCLA, Dept. Phys. Astron.) ; Westfall, Gary (Michigan State U., East Lansing, NSCL) ; Wieman, Howard (LBNL, Berkeley, Div. Phys.) ; Wissink, Scott (Indiana U., Bloomington, Dept. Phys.) ; Witt, Richard (U.S. Naval Acad., Annapolis) ; Wu, Yang (Kent State U., Dept. Phys.) ; Xiao, Zhigang (Tsinghua U., Beijing) ; Xie, Wei (Purdue U., West Lafayette, Dept. Phys.) ; Xie, Guannan (USTC, Hefei, DMP) ; Xu, Nu (LBNL, Berkeley, Div. Phys.) ; Xu, Zhangbu (Brookhaven Natl. Lab., Dept. Phys.) ; Xu, Yi-Fei (Shanghai Inst. Nucl. Res.) ; Xu, Ji (CCNU, Wuhan) ; Xu, Qinghua (Shandong U., Jinan) ; Yang, Yi (NCKU, Tainan, Dept. Phys.) ; Yang, Shuai (Brookhaven Natl. Lab., Dept. Phys.) ; Yang, Qian (Shandong U., Jinan) ; Ye, Zaochen (U. Illinois, Chicago, Dept. Phys.) ; Yi, Li (Yale U., Dept. Phys.) ; Yip, Kin (Brookhaven Natl. Lab., Dept. Phys.) ; Yoo, In-Kwon (PNU, Pusan, Dept. Phys.) ; Yu, Ning (CCNU, Wuhan) ; Zbroszczyk, Hanna (Warsaw U. of Tech., Fac. Phys.) ; Zhang, Song (Shanghai Inst. Nucl. Res.) ; Zhang, Zhengqiao (Shanghai Inst. Nucl. Res.) ; Zhang, Xiaoping (Tsinghua U., Beijing) ; Zhang, Liang (CCNU, Wuhan) ; Zhang, Jinlong (IMP, Lanzhou, Inst. Mod. Phys.) ; Zhang, Yifei (USTC, Hefei, DMP) ; Zhang, Shenghui (USTC, Hefei, DMP) ; Zhao, Jie (Purdue U., West Lafayette, Dept. Phys.) ; Zhong, Chen (Shanghai Inst. Nucl. Res.) ; Zhou, Long (USTC, Hefei, DMP) ; Zhou, Chensheng (Shanghai Inst. Nucl. Res.) ; Zhu, Zhanwen (Shandong U., Jinan) ; Zhu, Xianglei (Tsinghua U., Beijing) ; Zyzak, Maksym (Goethe U., Frankfurt, FIAS)

Pages: 20

Abstract: The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized $p^\uparrow+p$ collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons. This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb$^{-1}$ integrated luminosity of $p^\uparrow+p$ collisions at $\sqrt{s}=500$~GeV, an increase of more than a factor of ten compared to our previous measurement at $\sqrt{s}=200$~GeV. Non-zero asymmetries sensitive to transversity are observed at a $Q^2$ of several hundred GeV and are found to be consistent with the former measurement and a model calculation. %we observe consistent with the former measurement are observed.} We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.

Web-Page: http://inspirehep.net/record/1632938/files/Q2vsX_v6.png; http://inspirehep.net/record/1632938/files/AvsMinvPordered_v6.png; http://inspirehep.net/record/1632938/files/TheoryComparison_v5.png; http://inspirehep.net/record/1632938/files/AvsPtPlot_v5.png; http://inspirehep.net/record/1632938/files/AvsEtaPlot_v9.png; http://inspirehep.net/record/1632938/files/AvsMinvPlot_v4.png; http://inspirehep.net/record/1632938/files/IFF_frame.png; http://inspirehep.net/record/1632938/files/arXiv:1710.10215.pdf


Note: *Temporary entry*; 20 pages, 7 figures, 5 tables, submitted to PLB

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