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Charged-pion cross sections and double-helicity asymmetries in polarized p plus p collisions at root s=200 GeV

Title
Charged-pion cross sections and double-helicity asymmetries in polarized p plus p collisions at root s=200 GeV
Authors
Adare, A.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.Atomssa, E. T.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.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. -H.Chi, 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.Gal, C.Garishvili, I.Giordano, F.Glenn, A.Gong, X.Gonin, M.Goto, Y.de Cassagnac, R. GranierGrau, N.Greene, S. V.Perdekamp, M. GrosseGunji, T.Guo, L.Gustafsson, H. -A.Haggerty, 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.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. -J.Kim, Y. -J.Kim, 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. LindenLiu, H.Liu, M. X.Love, B.Lynch, D.Maguire, C. F.Makdisi, Y. I.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.Patel, L.Pei, H.Peng, J. -C.Pereira, H.Peressounko, D. Yu.Petti, 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.Rubin, J. G.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. -A.Shigaki, 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.PHENIX Collaboration
Ewha Authors
한인식
SCOPUS Author ID
한인식scopus
Issue Date
2015
Journal Title
PHYSICAL REVIEW D
ISSN
2470-0010JCR Link

2470-0029JCR Link
Citation
PHYSICAL REVIEW D vol. 91, no. 3
Publisher
AMER PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS WOS
Document Type
Article
Abstract
We present midrapidity charged-pion invariant cross sections, the ratio of the pi(-) to pi(+) cross sections and the charge-separated double-spin asymmetries in polarized p + p collisions at root s = p + 200 GeV. While the cross section measurements are consistent within the errors of next-to-leading-order (NLO) perturbative quantum chromodynamics predictions (pQCD), the same calculations overestimate the ratio of the charged-pion cross sections. This discrepancy arises from the cancellation of the substantial systematic errors associated with the NLO-pQCD predictions in the ratio and highlights the constraints these data will place on flavor-dependent pion fragmentation functions. The charge-separated pion asymmetries presented here sample an x range of similar to 0.03-0.16 and provide unique information on the sign of the gluon-helicity distribution.
DOI
10.1103/PhysRevD.91.032001
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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