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Double-spin asymmetry of electrons from heavy-flavor decays in p plus p collisions at root s=200 GeV

Authors
Adare, A.Afanasiev, S.Aidala, C.Ajitanand, N. N.Akiba, Y.Akimoto, R.Al-Ta'ani, H.Alexander, J.Andrews, K. R.Angerami, A.Aoki, K.Apadula, N.Appelt, E.Aramaki, Y.Armendariz, R.Aschenauer, E. C.Awes, T. C.Azmoun, B.Babintsev, V.Bai, M.Bannier, B.Barish, K. N.Bassalleck, B.Basye, A. T.Bathe, S.Baublis, V.Baumann, C.Bazilevsky, A.Belmont, R.Ben-Benjamin, J.Bennett, R.Berdnikov, A.Berdnikov, Y.Blau, D. S.Bok, J. S.Boyle, K.Brooks, M. L.Broxmeyer, D.Buesching, H.Bumazhnov, V.Bunce, G.Butsyk, S.Campbell, S.Castera, P.Chen, C-HChi, C. Y.Chiu, M.Choi, I. J.Choi, J. B.Choudhury, R. K.Christiansen, P.Chujo, T.Chvala, O.Cianciolo, V.Citron, Z.Cole, B. A.del Valle, Z. ConesaConnors, M.Csanad, M.Csoergo, T.Dairaku, S.Datta, A.David, G.Dayananda, M. K.Denisov, A.Deshpande, A.Desmond, E. J.Dharmawardane, K. V.Dietzsch, O.Dion, A.Donadelli, M.Drapier, O.Drees, A.Drees, K. A.Durham, J. M.Durum, A.D'Orazio, L.Efremenko, Y. V.Engelmore, T.Enokizono, A.En'yo, H.Esumi, S.Fadem, B.Fields, D. E.Finger, M.Finger, M., Jr.Fleuret, F.Fokin, S. L.Frantz, J. E.Franz, A.Frawley, A. D.Fukao, Y.Fusayasu, T.Garishvili, I.Glenn, A.Gong, X.Gonin, M.Goto, Y.de Cassagnac, R. GranierGrau, N.Greene, S. V.Perdekamp, M. GrosseGunji, T.Guo, L.Gustafsson, H-AHaggerty, J. S.Hahn, K. I.Hamagaki, H.Hamblen, J.Han, R.Hanks, J.Harper, C.Hashimoto, K.Haslum, E.Hayano, R.He, X.Hemmick, T. K.Hester, T.Hill, J. C.Hollis, R. S.Holzmann, W.Homma, K.Hong, B.Horaguchi, T.Hori, Y.Hornback, D.Huang, S.Ichihara, T.Ichimiya, R.Iinuma, H.Ikeda, Y.Imai, K.Inaba, M.Iordanova, A.Isenhower, D.Ishihara, M.Issah, M.Isupov, A.Ivanischev, D.Iwanaga, Y.Jacak, B. V.Jia, J.Jiang, X.John, D.Johnson, B. M.Jones, T.Joo, K. S.Jouan, D.Kamin, J.Kaneti, S.Kang, B. H.Kang, J. H.Kang, J. S.Kapustinsky, J.Karatsu, K.Kasai, M.Kawall, D.Kazantsev, A. V.Kempel, T.Khanzadeev, A.Kijima, K. M.Kim, B. I.Kim, D. J.Kim, E-JKim, Y-JKim, Y. K.Kinney, E.Kiss, A.Kistenev, E.Kleinjan, D.Kline, P.Kochenda, L.Komkov, B.Konno, M.Koster, J.Kotov, D.Kral, A.Kunde, G. J.Kurita, K.Kurosawa, M.Kwon, Y.Kyle, G. S.Lacey, R.Lai, Y. S.Lajoie, J. G.Lebedev, A.Lee, D. M.Lee, J.Lee, K. B.Lee, K. S.Lee, S. H.Lee, S. R.Leitch, M. J.Leite, M. A. L.Li, X.Lim, S. H.Levy, L. A. LindenLitvinenko, A.Liu, H.Liu, M. X.Love, B.Lynch, D.Maguire, C. F.Makdisi, Y. I.Malakhov, A.Manion, A.Manko, V. I.Mannel, E.Mao, Y.Masui, H.McCumber, M.McGaughey, P. L.McGlinchey, D.McKinney, C.Means, N.Mendoza, M.Meredith, B.Miake, Y.Mibe, T.Mignerey, A. C.Miki, K.Milov, A.Mitchell, J. T.Miyachi, Y.Mohanty, A. K.Moon, H. J.Morino, Y.Morreale, A.Morrison, D. P.Motschwiller, S.Moukhanova, T. V.Murakami, T.Murata, J.Nagamiya, S.Nagle, J. L.Naglis, M.Nagy, M. I.Nakagawa, I.Nakamiya, Y.Nakamura, K. R.Nakamura, T.Nakano, K.Newby, J.Nguyen, M.Nihashi, M.Nouicer, R.Nyanin, A. S.Oakley, C.O'Brien, E.Ogilvie, C. A.Oka, M.Okada, K.Oskarsson, A.Ouchida, M.Ozawa, K.Pak, R.Pantuev, V.Papavassiliou, V.Park, B. H.Park, I. H.Park, S. K.Pate, S. F.Pei, H.Peng, J-CPereira, H.Peresedov, V.Peressounko, D. YuPetti, R.Pinkenburg, C.Pisani, R. P.Proissl, M.Purschke, M. L.Qu, H.Rak, J.Ravinovich, I.Read, K. F.Reygers, K.Riabov, V.Riabov, Y.Richardson, E.Roach, D.Roche, G.Rolnick, S. D.Rosati, M.Rosendahl, S. S. E.Rukoyatkin, P.Sahlmueller, B.Saito, N.Sakaguchi, T.Samsonov, V.Sano, S.Sarsour, M.Sato, T.Savastio, M.Sawada, S.Sedgwick, K.Seidl, R.Seto, R.Sharma, D.Shein, I.Shibata, T-AShigaki, K.Shim, H. H.Shimomura, M.Shoji, K.Shukla, P.Sickles, A.Silva, C. L.Silvermyr, D.Silvestre, C.Sim, K. S.Singh, B. K.Singh, C. P.Singh, V.Slunecka, M.Sodre, T.Soltz, R. A.Sondheim, W. E.Sorensen, S. P.Sourikova, I. V.Stankus, P. W.Stenlund, E.Stoll, S. P.Sugitate, T.Sukhanov, A.Sun, J.Sziklai, J.Takagui, E. M.Takahara, A.Taketani, A.Tanabe, R.Tanaka, Y.Taneja, S.Tanida, K.Tannenbaum, M. J.Tarafdar, S.Taranenko, A.Tennant, E.Themann, H.Thomas, D.Togawa, M.Tomasek, L.Tomasek, M.Torii, H.Towell, R. S.Tserruya, I.Tsuchimoto, Y.Utsunomiya, K.Vale, C.van Hecke, H. W.Vazquez-Zambrano, E.Veicht, A.Velkovska, J.Vertesi, R.Virius, M.Vossen, A.Vrba, V.Vznuzdaev, E.Wang, X. R.Watanabe, D.Watanabe, K.Watanabe, Y.Watanabe, Y. S.Wei, F.Wei, R.Wessels, J.White, S. N.Winter, D.Woody, C. L.Wright, R. M.Wysocki, M.Yamaguchi, Y. L.Yang, R.Yanovich, A.Ying, J.Yokkaichi, S.Yoo, J. S.You, Z.Young, G. R.Younus, I.Yushmanov, I. E.Zajc, W. A.Zelenski, A.Zhou, S.Zolin, L.
Issue Date
29-1월-2013
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.87, no.1
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
87
Number
1
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/104168
DOI
10.1103/PhysRevD.87.012011
ISSN
1550-7998
Abstract
We report on the first measurement of the double-spin asymmetry, A(LL), of electrons from the decays of hadrons containing heavy flavor in longitudinally polarized p + p collisions at root s = 200 GeV for p(T) = 0.5 to 3.0 GeV/c. The asymmetry was measured at midrapidity (vertical bar eta vertical bar < 0.35) with the PHENIX detector at the Relativistic Heavy Ion Collider. The measured asymmetries are consistent with zero within the statistical errors. We obtained a constraint for the polarized gluon distribution in the proton of vertical bar Delta g/g(log(10)(x) = -1.6(-0.4)(+0.5), mu = m(T)(c)vertical bar(2) < 0.030 (1 sigma) based on a leading-order perturbative quantum chromodynamics model, using the measured asymmetry. DOI: 10.1103/PhysRevD.87.012011
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