Measurement of the parity-violating longitudinal single-spin asymmetry for W boson production in polarized proton-proton collisions at sqrt[s] = 500 GeV. uri icon

abstract

  • We report the first measurement of the parity-violating single-spin asymmetries for midrapidity decay positrons and electrons from W+ and W- boson production in longitudinally polarized proton-proton collisions at sqrt[s] = 500 GeV by the STAR experiment at RHIC. The measured asymmetries, A(L)(W+) = -0.27 0.10(stat.) 0.02(syst.) 0.03(norm.) and A(L)(W-) = 0.14 0.19(stat.) 0.02(syst.) 0.01(norm.), are consistent with theory predictions, which are large and of opposite sign. These predictions are based on polarized quark and antiquark distribution functions constrained by polarized deep-inelastic scattering measurements.

published proceedings

  • Phys Rev Lett

altmetric score

  • 6.96

author list (cited authors)

  • Aggarwal, M. M., Ahammed, Z., Alakhverdyants, A. V., Alekseev, I., Alford, J., Anderson, B. D., ... STAR Collaboration.

citation count

  • 46

complete list of authors

  • Aggarwal, MM||Ahammed, Z||Alakhverdyants, AV||Alekseev, I||Alford, J||Anderson, BD||Anson, CD||Arkhipkin, D||Averichev, GS||Balewski, J||Beavis, DR||Bellwied, R||Betancourt, MJ||Betts, RR||Bhasin, A||Bhati, AK||Bichsel, H||Bielcik, J||Bielcikova, J||Biritz, B||Bland, LC||Borowski, W||Bouchet, J||Braidot, E||Brandin, AV||Bridgeman, A||Brovko, SG||Bruna, E||Bueltmann, S||Bunzarov, I||Burton, TP||Cai, XZ||Caines, H||Calderón de la Barca Sánchez, M||Cebra, D||Cendejas, R||Cervantes, MC||Chajecki, Z||Chaloupka, P||Chattopadhyay, S||Chen, HF||Chen, JH||Chen, JY||Cheng, J||Cherney, M||Chikanian, A||Choi, KE||Christie, W||Chung, P||Codrington, MJM||Corliss, R||Cramer, JG||Crawford, HJ||Dash, S||Davila Leyva, A||De Silva, LC||Debbe, RR||Dedovich, TG||Derevschikov, AA||Derradi de Souza, R||Didenko, L||Djawotho, P||Dogra, SM||Dong, X||Drachenberg, JL||Draper, JE||Dunlop, JC||Dutta Mazumdar, MR||Efimov, LG||Elnimr, M||Engelage, J||Eppley, G||Erazmus, B||Estienne, M||Eun, L||Evdokimov, O||Fatemi, R||Fedorisin, J||Fersch, RG||Finch, E||Fine, V||Fisyak, Y||Gagliardi, CA||Gangadharan, DR||Ganti, MS||Geromitsos, A||Geurts, F||Ghosh, P||Gorbunov, YN||Gordon, A||Grebenyuk, O||Grosnick, D||Guertin, SM||Gupta, A||Guryn, W||Haag, B||Hamed, A||Han, L-X||Harris, JW||Hays-Wehle, JP||Heinz, M||Heppelmann, S||Hirsch, A||Hjort, E||Hoffmann, GW||Hofman, DJ||Huang, B||Huang, HZ||Humanic, TJ||Huo, L||Igo, G||Jacobs, P||Jacobs, WW||Jena, C||Jin, F||Joseph, J||Judd, EG||Kabana, S||Kang, K||Kapitan, J||Kauder, K||Keane, D||Kechechyan, A||Kettler, D||Kikola, DP||Kiryluk, J||Kisiel, A||Kizka, V||Klein, SR||Knospe, AG||Kocoloski, A||Koetke, DD||Kollegger, T||Konzer, J||Koralt, I||Koroleva, L||Korsch, W||Kotchenda, L||Kouchpil, V||Kravtsov, P||Krueger, K||Krus, M||Kumar, L||Kurnadi, P||Lamont, MAC||Landgraf, JM||LaPointe, S||Lauret, J||Lebedev, A||Lednicky, R||Lee, C-H||Lee, JH||Leight, W||LeVine, MJ||Li, C||Li, L||Li, N||Li, W||Li, X||Li, X||Li, Y||Li, ZM||Lisa, MA||Liu, F||Liu, H||Liu, J||Ljubicic, T||Llope, WJ||Longacre, RS||Love, WA||Lu, Y||Lukashov, EV||Luo, X||Ma, GL||Ma, YG||Mahapatra, DP||Majka, R||Mall, OI||Mangotra, LK||Manweiler, R||Margetis, S||Markert, C||Masui, H||Matis, HS||Matulenko, Yu A||McDonald, D||McShane, TS||Meschanin, A||Milner, R||Minaev, NG||Mioduszewski, S||Mischke, A||Mitrovski, MK||Mohanty, B||Mondal, MM||Morozov, B||Morozov, DA||Munhoz, MG||Naglis, M||Nandi, BK||Nayak, TK||Netrakanti, PK||Ng, MJ||Nogach, LV||Nurushev, SB||Odyniec, G||Ogawa, A||Ohlson, A||Okorokov, V||Oldag, EW||Olson, D||Pachr, M||Page, BS||Pal, SK||Pandit, Y||Panebratsev, Y||Pawlak, T||Peitzmann, T||Perkins, C||Peryt, W||Phatak, SC||Pile, P||Planinic, M||Ploskon, MA||Pluta, J||Plyku, D||Poljak, N||Poskanzer, AM||Potukuchi, BVKS||Powell, CB||Prindle, D||Pruneau, C||Pruthi, NK||Pujahari, PR||Putschke, J||Qiu, H||Raniwala, R||Raniwala, S||Ray, RL||Redwine, R||Reed, R||Ritter, HG||Roberts, JB||Rogachevskiy, OV||Romero, JL||Rose, A||Ruan, L||Sakai, S||Sakrejda, I||Sakuma, T||Salur, S||Sandweiss, J||Sangaline, E||Schambach, J||Scharenberg, RP||Schmah, AM||Schmitz, N||Schuster, TR||Seele, J||Seger, J||Selyuzhenkov, I||Seyboth, P||Shahaliev, E||Shao, M||Sharma, M||Shi, SS||Sichtermann, EP||Simon, F||Singaraju, RN||Skoby, MJ||Smirnov, N||Sorensen, P||Spinka, HM||Srivastava, B||Stanislaus, TDS||Staszak, D||Stevens, JR||Stock, R||Strikhanov, M||Stringfellow, B||Suaide, AAP||Suarez, MC||Subba, NL||Sumbera, M||Sun, XM||Sun, Y||Sun, Z||Surrow, B||Svirida, DN||Symons, TJM||Szanto de Toledo, A||Takahashi, J||Tang, AH||Tang, Z||Tarini, LH||Tarnowsky, T||Thein, D||Thomas, JH||Tian, J||Timmins, AR||Timoshenko, S||Tlusty, D||Tokarev, M||Trainor, TA||Tram, VN||Trentalange, S||Tribble, RE||Tsai, OD||Ullrich, T||Underwood, DG||Van Buren, G||van Leeuwen, M||van Nieuwenhuizen, G||Vanfossen, JA||Varma, R||Vasconcelos, GMS||Vasiliev, AN||Videbæk, F||Viyogi, YP||Vokal, S||Voloshin, SA||Wada, M||Walker, M||Wang, F||Wang, G||Wang, H||Wang, JS||Wang, Q||Wang, XL||Wang, Y||Webb, G||Webb, JC||Westfall, GD||Whitten, C||Wieman, H||Wissink, SW||Witt, R||Wu, YF||Xie, W||Xu, H||Xu, N||Xu, QH||Xu, W||Xu, Y||Xu, Z||Xue, L||Yang, Y||Yepes, P||Yip, K||Yoo, I-K||Yue, Q||Zawisza, M||Zbroszczyk, H||Zhan, W||Zhang, JB||Zhang, S||Zhang, WM||Zhang, XP||Zhang, Y||Zhang, ZP||Zhao, J||Zhong, C||Zhou, W||Zhu, X||Zhu, YH||Zoulkarneev, R||Zoulkarneeva, Y

publication date

  • February 2011