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Cross sections and double-helicity asymmetries of midrapidity inclusive charged hadrons in p plus p collisions at root s = 62.4 GeV

Authors
Adare, A.Afanasiev, S.Aidala, C.Ajitanand, N. N.Akiba, Y.Al-Bataineh, H.Alexander, J.Aoki, K.Aphecetche, L.Asai, J.Atomssa, E. T.Averbeck, R.Awes, T. C.Azmoun, B.Babintsev, V.Bai, M.Baksay, G.Baksay, L.Baldisseri, A.Barish, K. N.Barnes, P. D.Bassalleck, B.Basye, A. T.Bathe, S.Batsouli, S.Baublis, V.Baumann, C.Bazilevsky, A.Belikov, S.Bennett, R.Berdnikov, A.Berdnikov, Y.Bickley, A. A.Boissevain, J. G.Borel, H.Boyle, K.Brooks, M. L.Buesching, H.Bumazhnov, V.Bunce, G.Butsyk, S.Camacho, C. M.Campbell, S.Chang, B. S.Chang, W. C.Charvet, J. -L.Chernichenko, S.Chi, C. Y.Chiu, M.Choi, I. J.Choudhury, R. K.Chujo, T.Chung, P.Churyn, A.Cianciolo, V.Citron, Z.Cole, B. A.Constantin, P.Csanad, M.Csoergo, T.Dahms, T.Dairaku, S.Das, K.Datta, A.David, G.Denisov, A.d'Enterria, D.Deshpande, A.Desmond, E. J.Dietzsch, O.Dion, A.Donadelli, M.Drapier, O.Drees, A.Drees, K. A.Dubey, A. K.Durum, A.Dutta, D.Dzhordzhadze, V.Efremenko, Y. V.Ellinghaus, F.Engelmore, T.Enokizono, A.En'yo, H.Esumi, S.Eyser, K. O.Fadem, B.Fields, D. E.Finger, M.Finger, M., Jr.Fleuret, F.Fokin, S. L.Fraenkel, Z.Frantz, J. E.Franz, A.Frawley, A. D.Fujiwara, K.Fukao, Y.Fusayasu, T.Garishvili, I.Glenn, A.Gong, H.Gonin, M.Gosset, J.Goto, Y.de Cassagnac, R. GranierGrau, N.Greene, S. V.Perdekamp, M. GrosseGunji, T.Gustafsson, H. -A.Henni, A. HadjHaggerty, J. S.Hamagaki, H.Han, R.Hartouni, E. P.Haruna, K.Haslum, E.Hayano, R.He, X.Heffner, M.Hemmick, T. K.Hester, T.Hill, J. C.Hohlmann, M.Holzmann, W.Homma, K.Hong, B.Horaguchi, T.Hornback, D.Huang, S.Ichihara, T.Ichimiya, R.Iinuma, H.Ikeda, Y.Imai, K.Imrek, J.Inaba, M.Isenhower, D.Ishihara, M.Isobe, T.Issah, M.Isupov, A.Ivanischev, D.Jacak, B. V.Jia, J.Jin, J.Johnson, B. M.Joo, K. S.Jouan, D.Kajihara, F.Kametani, S.Kamihara, N.Kamin, J.Kang, J. H.Kapustinsky, J.Kawall, D.Kazantsev, A. V.Kempel, T.Khanzadeev, A.Kijima, K. M.Kikuchi, J.Kim, B. I.Kim, D. H.Kim, D. J.Kim, E.Kim, S. H.Kinney, E.Kiriluk, K.Kiss, A.Kistenev, E.Klay, J.Klein-Boesing, C.Kochenda, L.Komkov, B.Konno, M.Koster, J.Kozlov, A.Kral, A.Kravitz, A.Kunde, G. J.Kurita, K.Kurosawa, M.Kweon, M. J.Kwon, Y.Kyle, G. S.Lacey, R.Lai, Y. S.Lajoie, J. G.Layton, D.Lebedev, A.Lee, D. M.Lee, K. B.Lee, T.Leitch, M. J.Leite, M. A. L.Lenzi, B.Li, X.Liebing, P.Liska, T.Litvinenko, A.Liu, H.Liu, M. X.Love, B.Lynch, D.Maguire, C. F.Makdisi, Y. I.Malakhov, A.Malik, M. D.Manko, V. I.Mannel, E.Mao, Y.Masek, L.Masui, H.Matathias, F.McCumber, M.McGaughey, P. L.Means, N.Meredith, B.Miake, Y.Mikes, P.Miki, K.Milov, A.Mishra, M.Mitchell, J. T.Mohanty, A. K.Morino, Y.Morreale, A.Morrison, D. P.Moukhanova, T. V.Mukhopadhyay, D.Murata, J.Nagamiya, S.Nagle, J. L.Naglis, M.Nagy, M. I.Nakagawa, I.Nakamiya, Y.Nakamura, T.Nakano, K.Newby, J.Nguyen, M.Niita, T.Nouicer, R.Nyanin, A. S.O'Brien, E.Oda, S. X.Ogilvie, C. A.Oka, M.Okada, K.Onuki, Y.Oskarsson, A.Ouchida, M.Ozawa, K.Pak, R.Palounek, A. P. T.Pantuev, V.Papavassiliou, V.Park, J.Park, W. J.Pate, S. F.Pei, H.Peng, J. -C.Pereira, H.Peresedov, V.Peressounko, D. Yu.Pinkenburg, C.Purschke, M. L.Purwar, A. K.Qu, H.Rak, J.Rakotozafindrabe, A.Ravinovich, I.Read, K. F.Rembeczki, S.Reygers, K.Riabov, V.Riabov, Y.Roach, D.Roche, G.Rolnick, S. D.Rosati, M.Rosendahl, S. S. E.Rosnet, P.Rukoyatkin, P.Ruzicka, P.Rykov, V. L.Sahlmueller, B.Saito, N.Sakaguchi, T.Sakai, S.Sakashita, K.Samsonov, V.Sato, T.Sawada, S.Sedgwick, K.Seele, J.Seidl, R.Semenov, A. Yu.Semenov, V.Seto, R.Sharma, D.Shein, I.Shibata, T. -A.Shigaki, K.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.Soldatov, A.Soltz, R. A.Sondheim, W. E.Sorensen, S. P.Sourikova, I. V.Staley, F.Stankus, P. W.Stenlund, E.Stepanov, M.Ster, A.Stoll, S. P.Sugitate, T.Suire, C.Sukhanov, A.Sziklai, J.Takagui, E. M.Taketani, A.Tanabe, R.Tanaka, Y.Taneja, S.Tanida, K.Tannenbaum, M. J.Taranenko, A.Tarjan, P.Themann, H.Thomas, T. L.Togawa, M.Toia, A.Tomasek, L.Tomita, Y.Torii, H.Towell, R. S.Tram, V-N.Tserruya, I.Tsuchimoto, Y.Vale, C.Valle, H.van Hecke, H. W.Veicht, A.Velkovska, J.Vertesi, R.Vinogradov, A. A.Virius, M.Vrba, V.Vznuzdaev, E.Wang, X. R.Watanabe, Y.Wei, F.Wessels, J.White, S. N.Winter, D.Woody, C. L.Wysocki, M.Xie, W.Yamaguchi, Y. L.Yamaura, K.Yang, R.Yanovich, A.Ying, J.Yokkaichi, S.Young, G. R.Younus, I.Yushmanov, I. E.Zajc, W. A.Zaudtke, O.Zhang, C.Zhou, S.Zolin, L.
Issue Date
8-11월-2012
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.86, no.9
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
86
Number
9
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/106949
DOI
10.1103/PhysRevD.86.092006
ISSN
1550-7998
Abstract
Unpolarized cross sections and double-helicity asymmetries of single-inclusive positive and negative charged hadrons at midrapidity from p + p collisions at root s = 62.4 GeV are presented. The PHENIX measurement of the cross sections for 1.0 < p(T) < 4.5 GeV/c are consistent with perturbative QCD calculations at next-to-leading order in the strong-coupling constant, alpha(s). Resummed pQCD calculations including terms with next-to-leading-log accuracy, yielding reduced theoretical uncertainties, also agree with the data. The double-helicity asymmetry, sensitive at leading order to the gluon polarization in a momentum-fraction range of 0.05 less than or similar to x(gluon) less than or similar to 0.2, is consistent with recent global parametrizations disfavoring large gluon polarization.
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