Results of a systematic study of dijet suppression measured at the BNL Relativistic Heavy Ion Collider

被引：28

作者：

Coleman-Smith, C. E. ^{[1
]}

Mueller, B. ^{[1
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 05期

关键词：

RADIATIVE ENERGY-LOSS; QUARKS; JET;

D O I：

10.1103/PhysRevC.86.054901

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Background: There has been much recent investigation into dijets at the Large Hadron Collider, but predictions for dijets at Relativistic Heavy Ion Collider (RHIC) scales are lacking. Purpose: We present a systematic study of the dijet suppression at RHIC using the VNI/Bass-Muller-Srivastava parton cascade. Methods: We examine the modification of the dijet asymmetry A(j) and the within-cone transverse energy distribution (jet shape) along with partonic fragmentation distributions z and j(t) in terms of (q) over cap, the path length of leading and subleading jets, cuts on the jet energy distributions, the jet cone angle, and the jet-medium interaction mechanism. Results: We find that A(j) is most sensitive to (q) over cap and relatively insensitive to the nature of the jet-medium interaction mechanism. The jet profile is dominated by (q) over cap and the nature of the interaction mechanism. The partonic fragmentation distributions clearly show the jet modification and differentiate between elastic and radiative plus elastic modes. Conclusions: Dijets at RHIC scales are strongly modified by a quark-gluon plasma medium; measurements of their suppression will provide a vital additional data point for understanding the modification of hard probes.

引用

页数：10

共 21 条

[1] Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at √sNN=2.76 TeV with the ATLAS Detector at the LHC [J].

Aad, G. ;

Abbott, B. ;

Abdallah, J. ;

Abdelalim, A. A. ;

Abdesselam, A. ;

Abdinov, O. ;

Abi, B. ;

Abolins, M. ;

Abramowicz, H. ;

Abreu, H. ;

Acerbi, E. ;

Acharya, B. S. ;

Ackers, M. ;

Adams, D. L. ;

Addy, T. N. ;

Adelman, J. ;

Aderholz, M. ;

Adomeit, S. ;

Adragna, P. ;

Adye, T. ;

Aefsky, S. ;

Aguilar-Saavedra, J. A. ;

Aharrouche, M. ;

Ahlen, S. P. ;

Ahles, F. ;

Ahmad, A. ;

Ahsan, M. ;

Aielli, G. ;

Akdogan, T. ;

Akesson, T. P. A. ;

Akimoto, G. ;

Akimov, A. V. ;

Alam, M. S. ;

Alam, M. A. ;

Albrand, S. ;

Aleksa, M. ;

Aleksandrov, I. N. ;

Aleppo, M. ;

Alessandria, F. ;

Alexa, C. ;

Alexander, G. ;

Alexandre, G. ;

Alexopoulos, T. ;

Alhroob, M. ;

Aliev, M. ;

Alimonti, G. ;

Alison, J. ;

Aliyev, M. ;

Allport, P. P. ;

Allwood-Spiers, S. E. .

PHYSICAL REVIEW LETTERS, 2010, 105 (25)

[2]

[Anonymous], ARXIV11035769NUCLTH

[3] High-energy jet quenching in weakly coupled quark-gluon plasmas [J].

Arnold, Peter ;

Xiao, Wei .

PHYSICAL REVIEW D, 2008, 78 (12)

[4] Radiative energy loss of high energy quarks and gluons in a finite-volume quark-gluon plasma [J].

Baier, R ;

Dokshitzer, YL ;

Mueller, AH ;

Peigne, S ;

Schiff, D .

NUCLEAR PHYSICS B, 1997, 483 (1-2) :291-320

[5] Parton rescattering and screening in Au plus Au collisions at RHIC [J].

Bass, SA ;

Müller, B ;

Srivastava, DK .

PHYSICS LETTERS B, 2003, 551 (3-4) :277-283

[6] The anti-kt jet clustering algorithm [J].

Cacciari, Matteo ;

Salam, Gavin P. ;

Soyez, Gregory .

JOURNAL OF HIGH ENERGY PHYSICS, 2008, (04)

[7] Dispelling the N3 myth for the kt jet-finder [J].

Cacciari, Matteo ;

Salam, Gavin P. .

PHYSICS LETTERS B, 2006, 641 (01) :57-61

[8] Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV [J].

Chatrchyan, S. ;

Khachatryan, V. ;

Sirunyan, A. M. ;

Tumasyan, A. ;

Adam, W. ;

Bergauer, T. ;

Dragicevic, M. ;

Eroe, J. ;

Fabjan, C. ;

Friedl, M. ;

Fruehwirth, R. ;

Ghete, V. M. ;

Hammer, J. ;

Haensel, S. ;

Hartl, C. ;

Hoch, M. ;

Hoermann, N. ;

Hrubec, J. ;

Jeitler, M. ;

Kasieczka, G. ;

Kiesenhofer, W. ;

Krammer, M. ;

Liko, D. ;

Mikulec, I. ;

Pernicka, M. ;

Rohringer, H. ;

Schoefbeck, R. ;

Strauss, J. ;

Teischinger, F. ;

Wagner, P. ;

Waltenberger, W. ;

Walzel, G. ;

Widl, E. ;

Wulz, C. -E. ;

Mossolov, V. ;

Shumeiko, N. ;

Gonzalez, J. Suarez ;

Benucci, L. ;

De Wolf, E. A. ;

Janssen, X. ;

Maes, T. ;

Mucibello, L. ;

Ochesanu, S. ;

Roland, B. ;

Rougny, R. ;

Selvaggi, M. ;

Van Haevermaet, H. ;

Van Mechelen, P. ;

Van Remortel, N. ;

Beauceron, S. .

PHYSICAL REVIEW C, 2011, 84 (02)

[9]

Coleman-Smith C. E., ARXIV11014895HEPPH

[10]

Dokshitzer Yu.L., 1991, BASICS PERTURBATIVE

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