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

Autoria(s): 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, Olacio; Dion, A.; Donadelli, Marisílvia; 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. Granier; Grau, N.; Greene, S. V.; Perdekamp, M. Grosse; Gunji, T.; Gustafsson, H. -A.; Henni, A. Hadj; Haggerty, 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, Marco Aurelio Lisboa; Lenzi, Bruno Rodrigues; 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, Cesar Luiz da; 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, Emi Marcia; 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.
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO
Data(s)

07/11/2013

07/11/2013

2012
Resumo

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.

Office of Nuclear Physics in the Office of Science of the Department of Energy

National Science Foundation

Renaissance Technologies LLC

Abilene Christian University Research Council

Research Foundation of SUNY

College of Arts and Sciences, Vanderbilt University (USA)

Ministry of Education, Culture, Sports, Science, and Technology

Japan Society for the Promotion of Science (Japan)

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (Brazil)

Natural Science Foundation of China (P.R. China)

Ministry of Education, Youth and Sports (Czech Republic)

Centre National de la Recherche Scientifique

Commissariat a l'Energie Atomique

Institut National de Physique Nucleaire et de Physique des Particules (France)

Bundesministerium fur Bildung und Forschung

Deutscher Akademischer Austausch Dienst

Alexander von Humboldt Stiftung (Germany)

Hungarian National Science Fund, OTKA (Hungary)

Department of Atomic Energy

Department of Science and Technology (India)

Israel Science Foundation (Israel)

National Research Foundation

WCU program of the Ministry Education Science and Technology (Korea)

Ministry of Education and Science

Russian Academy of Sciences

Federal Agency of Atomic Energy (Russia)

VR

Wallenberg Foundation (Sweden)

U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union

U.S.Hungarian Fulbright Foundation for Educational Exchange

U.S.-Israel Binational Science Foundation
Identificador

PHYSICAL REVIEW D, COLLEGE PK, v. 86, n. 9, supl., Part 3, pp. 2359-2369, 39753, 2012

1550-7998

http://www.producao.usp.br/handle/BDPI/42962

10.1103/PhysRevD.86.092006

http://dx.doi.org/10.1103/PhysRevD.86.092006
Idioma(s)

eng
Publicador

AMER PHYSICAL SOC

COLLEGE PK
Relação

PHYSICAL REVIEW D
Direitos

openAccess

Copyright AMER PHYSICAL SOC
Palavras-Chave #NEUTRON SPIN STRUCTURE #STRUCTURE-FUNCTION G(1)(N) #DEEP-INELASTIC SCATTERING #PROTON-PROTON COLLISIONS #HIGH TRANSVERSE-MOMENTUM #POLARIZED HE-3 #MUON-PROTON #TARGET #Q(2)-DEPENDENCE #DISTRIBUTIONS #FÍSICA, PARTÍCULAS E CAMPOS #FUNÇÃO ESTRUTURAL #COLISÕES PRÓTON - PRÓTON #ASTRONOMY & ASTROPHYSICS #PHYSICS, PARTICLES & FIELDS
Tipo

article

original article

publishedVersion
Acesso ao item digital