Direct observation of dijets in central Au+Au collisions at s(NN)**(1/2) = 200-GeV - INSPIRE

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Direct observation of dijets in central Au+Au collisions at s(NN)**(1/2) = 200-GeV

STAR

Collaboration

•

J. Adams
(
- Birmingham U.
)

Apr, 2006

6 pages

Published in:

Phys.Rev.Lett. 97 (2006) 162301

e-Print:

nucl-ex/0604018 [nucl-ex]

DOI:

10.1103/PhysRevLett.97.162301

Experiments:

BNL-RHIC-STAR

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Abstract:

The STAR Collaboration at RHIC reports measurements of azimuthal correlations of high transverse momentum (p_T) charged hadrons in Au+Au collisions at higher p_T 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.

Note:

6 pages, 4 figures

25.75.Gz
nucleus nucleus: colliding beams
scattering: heavy ion
gold
hadron: multiple production
transverse momentum: high
angular correlation: (2charged particle)
jet: pair production
impact parameter: dependence
nuclear matter: density

References(33)

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