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Direct Observation of Dijets in Central Au + Au Collisions at √s_(NN) = 200 GeV

Adams, J. and Hughes, E. W. and Relyea, D. (2006) Direct Observation of Dijets in Central Au + Au Collisions at √s_(NN) = 200 GeV. Physical Review Letters, 97 (16). Art. No. 162301. ISSN 0031-9007. doi:10.1103/PhysRevLett.97.162301.

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The STAR Collaboration at the Relativistic Heavy Ion Collider reports measurements of azimuthal correlations of high transverse momentum (p_T) charged hadrons in Au + Au collisions at higher pT than reported previously. As p_T is increased, a narrow, back-to-back peak emerges above the decreasing background, providing a clear dijet signal for all collision centralities studied. Using these correlations, we perform a systematic study of dijet production and suppression in nuclear collisions, providing new constraints on the mechanisms underlying partonic energy loss in dense matter.

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Additional Information:© 2006 American Physical Society. Received 28 April 2006; published 16 October 2006. We thank the RHIC Operations Group and RCF at BNL and the NERSC Center at LBNL for their support. This work was supported in part by the HENP Divisions of the Office of Science of the U.S. DOE; the U.S. NSF; the BMBF of Germany; IN2P3, RA, RPL, and EMN of France; EPSRC of the United Kingdom; FAPESP of Brazil; the Russian Ministry of Science and Technology; the Ministry of Education and the NNSFC of China; IRP and GA of the Czech Republic; FOM of the Netherlands; DAE, DST, and CSIR of the Government of India; Swiss NSF; the Polish State Committee for Scientific Research; STAA of Slovakia; and the Korea Science and Engineering Foundation.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Bundesministerium fur Bildung und Forschung (BMBF) (Germany)UNSPECIFIED
Institut National de Physique Nucléaire et Physique des Particules (IN2P3 ) (France)UNSPECIFIED
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) (Brazil)UNSPECIFIED
Russian Ministry of Science and TechnologyUNSPECIFIED
Ministry of EducationUNSPECIFIED
National Natural Science Foundation Committee (NNSFC) (China)UNSPECIFIED
GA (Czech Republic)UNSPECIFIED
Foundation for Fundamental Research on Matter (FOM) (The Netherlands)UNSPECIFIED
Swiss National Science FoundationUNSPECIFIED
Polish State Committee for Scientific ResearchUNSPECIFIED
Korea Science and Engineering FoundationUNSPECIFIED
Issue or Number:16
Classification Code:PACS: 25.75.Gz
Record Number:CaltechAUTHORS:20110210-135035712
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22115
Deposited By: Benjamin Perez
Deposited On:10 Feb 2011 22:19
Last Modified:09 Nov 2021 16:03

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