Azimuthal correlations of electrons from heavy-flavor decay with hadrons in p plus p and Au plus Au collisions at root s(NN)=200 GeV

Autoria(s): ADARE, A.; AFANASIEV, S.; AIDALA, C.; AJITANAND, N. N.; AKIBA, Y.; AL-BATAINEH, H.; ALEXANDER, J.; AOKI, K.; APHECETCHE, L.; ARAMAKI, Y.; 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.; BELMONT, R.; BENNETT, R.; BERDNIKOV, A.; BERDNIKOV, Y.; BICKLEY, A. A.; BOISSEVAIN, J. G.; BOK, J. S.; 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.; CHEN, C. -H.; CHERNICHENKO, S.; CHI, C. Y.; CHIU, M.; CHOI, I. J.; CHOUDHURY, R. K.; CHRISTIANSEN, P.; CHUJO, T.; CHUNG, P.; CHURYN, A.; CHVALA, O.; CIANCIOLO, V.; CITRON, Z.; COLE, B. A.; CONNORS, M.; CONSTANTIN, P.; CSANAD, M.; CSOERGO, T.; DAHMS, T.; DAIRAKU, S.; DANCHEV, I.; 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.; DURHAM, J. M.; DURUM, A.; DUTTA, D.; DZHORDZHADZE, V.; EDWARDS, S.; EFREMENKO, Y. V.; ELLINGHAUS, F.; ENGELMORE, T.; ENOKIZONO, A.; EN'YO, H.; ESUMI, S.; EYSER, K. O.; FADEM, B.; FIELDS, D. E.; FINGER JR., M.; FINGER, M.; 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.; CASSAGNAC, R. Granier de; GRAU, N.; GREENE, S. V.; PERDEKAMP, M. Grosse; GUNJI, T.; GUSTAFSSON, H. -A.; HENNI, A. Hadj; HAGGERTY, J. S.; HAHN, K. I.; HAMAGAKI, H.; HAMBLEN, J.; HANKS, J.; HAN, R.; HARTOUNI, E. P.; HARUNA, K.; HASLUM, E.; HAYANO, R.; HEFFNER, M.; HEMMICK, T. K.; HESTER, T.; HE, X.; HILL, J. C.; HOHLMANN, M.; HOLZMANN, W.; HOMMA, K.; HONG, B.; HORAGUCHI, T.; HORNBACK, D.; HUANG, S.; ICHIHARA, T.; ICHIMIYA, R.; IDE, J.; 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.; JUMPER, D. S.; KAJIHARA, F.; KAMETANI, S.; KAMIHARA, N.; KAMIN, J.; KANG, J. H.; KAPUSTINSKY, J.; KARATSU, K.; KAWALL, D.; KAWASHIMA, M.; KAZANTSEV, A. V.; KEMPEL, T.; KHANZADEEV, A.; KIJIMA, K. M.; KIKUCHI, J.; KIM, B. I.; KIM, D. H.; KIM, D. J.; KIM, E. J.; KIM, E.; KIM, S. H.; KIM, Y. J.; KINNEY, E.; KIRILUK, K.; KISS, A.; KISTENEV, E.; KLAY, J.; KLEIN-BOESING, C.; KOCHENDA, L.; KOMKOV, B.; KONNO, M.; KOSTER, J.; KOTCHETKOV, D.; 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, J.; LEE, K. B.; LEE, K.; LEE, K. S.; LEE, T.; LEITCH, M. J.; Leite, Marco Aurelio Lisboa; LEITNER, E.; Lenzi, Bruno Rodrigues; LIEBING, P.; LEVY, L. A. Linden; LISKA, T.; LITVINENKO, A.; LIU, H.; LIU, M. X.; LI, X.; LOVE, B.; LUECHTENBORG, R.; 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.; MIGNEREY, A. C.; 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.; OKADA, K.; OKA, M.; ONUKI, Y.; OSKARSSON, A.; OUCHIDA, M.; OZAWA, K.; PAK, R.; PALOUNEK, A. P. T.; PANTUEV, V.; PAPAVASSILIOU, V.; PARK, I. H.; PARK, J.; PARK, S. K.; PARK, W. J.; PATE, S. F.; PEI, H.; PENG, J. -C.; PEREIRA, H.; PERESEDOV, V.; PERESSOUNKO, D. Yu; PINKENBURG, C.; PISANI, R. P.; PROISSL, M.; 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.; RICHARDSON, E.; ROACH, D.; ROCHE, G.; ROLNICK, S. D.; ROSATI, M.; ROSEN, C. A.; 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.; SANO, S.; 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.; SPARKS, N. 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Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO
Data(s)

18/04/2012

18/04/2012

2011
Resumo

Measurements of electrons from the decay of open-heavy-flavor mesons have shown that the yields are suppressed in Au+Au collisions compared to expectations from binary-scaled p+p collisions. These measurements indicate that charm and bottom quarks interact with the hot dense matter produced in heavy-ion collisions much more than expected. Here we extend these studies to two-particle correlations where one particle is an electron from the decay of a heavy-flavor meson and the other is a charged hadron from either the decay of the heavy meson or from jet fragmentation. These measurements provide more detailed information about the interactions between heavy quarks and the matter, such as whether the modification of the away-side-jet shape seen in hadron-hadron correlations is present when the trigger particle is from heavy-meson decay and whether the overall level of away-side-jet suppression is consistent. We statistically subtract correlations of electrons arising from background sources from the inclusive electron-hadron correlations and obtain two-particle azimuthal correlations at root s(NN) = 200 GeV between electrons from heavy-flavor decay with charged hadrons in p+p and also first results in Au+Au collisions. We find the away-side-jet shape and yield to be modified in Au+Au collisions compared to p+p collisions.

Office of Nuclear Physics in the Office of Science of the Department of Energy (DOE)

National Science Foundation (NSF)

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 (MEXT), Japan

JSPS - Japan Society for the Promotion of Science (Japan)

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) and Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) (Brazil)

NSFC Natural Science Foundation of China (People's Republic of China)

MSMT Ministry of Education, Youth and Sports (Czech Republic)

CNRS Centre National de la Recherche Scientifique, CEA Commissariat a l'Energie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France)

Ministry of Industry, Science and Tekhnologie

BMBF - Bundesministerium fur Bildung und Forschung, Germany

(DAAD) Deutscher Akademischer Austausch Dienst, Germany

Alexander von Humboldt Stiftung (Germany)

Hungarian National Science Fund, OTKA (Hungary)

(DAE) Department of Atomic Energy and (DST) Department of Science and Technology, India

ISF - Israel Science Foundation (Israel)

National Research Foundation (NRF), Korea

Ministry Education Science and Technology (MEST), Korea

MES Ministry of Education and Science, Russia Academy of Sciences, Federal Agency of Atomic Energy (Russia)

VR (Sweden)

Wallenberg Foundation (Sweden)

CRDF US Civilian Research and Development Foundation for the Independent States of the Former Soviet Union

US-Hungarian Fulbright Foundation for Educational Exchange

(BSF) US-Israel Binational Science Foundation
Identificador

PHYSICAL REVIEW C, v.83, n.4, 2011

0556-2813

http://producao.usp.br/handle/BDPI/16055

10.1103/PhysRevC.83.044912

http://dx.doi.org/10.1103/PhysRevC.83.044912
Idioma(s)

eng
Publicador

AMER PHYSICAL SOC
Relação

Physical Review C
Direitos

restrictedAccess

Copyright AMER PHYSICAL SOC
Palavras-Chave #QCD MATTER #FRAGMENTATION #RADIATION #MESONS #Physics, Nuclear
Tipo

article

original article

publishedVersion
Acesso ao item digital