Explanation of Dijet Asymmetry in Pb-Pb Collisions at the Large Hadron Collider

Journal Article · Fri Apr 22 00:00:00 EDT 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.106.162302· OSTI ID:21550319

Guangyou, Qin; Mueller, Berndt ^[1]

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1. Department of Physics, Duke University, Durham, North Carolina 27708 (United States)

We investigate the medium modification of a partonic jet shower traversing in a hot quark-gluon plasma. We derive and solve a differential equation that governs the evolution of the radiated gluon distribution as the jet propagates through the medium. Energy contained inside the jet cone is lost by dissipation through elastic collisions with the medium and by scattering of shower partons to larger angles. We find that the jet energy loss at early times is dominated by medium effects on the vacuum radiation, and by medium-induced radiation effects at late times. We compare our numerical results for the nuclear modification of the dijet asymmetry with that recently reported by the ATLAS Collaboration.

• OSTI ID: 21550319
• Journal Information: Physical Review Letters, Vol. 106, Issue 16; Other Information: DOI: 10.1103/PhysRevLett.106.162302; (c) 2011 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ASYMMETRY
CERN LHC
COLLISIONS
DIFFERENTIAL EQUATIONS
DISTRIBUTION
ENERGY LOSSES
GLUONS
JETS
MODIFICATIONS
QUARK MATTER
SCATTERING
ACCELERATORS
BOSONS
CYCLIC ACCELERATORS
EQUATIONS
LOSSES
MATTER
STORAGE RINGS
SYNCHROTRONS