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Jet quenching in strongly coupled plasma

Author(s)
Chesler, Paul Michael; Rajagopal, Krishna
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Abstract
We present calculations in which an energetic light quark shoots through a finite slab of strongly coupled N = 4 supersymmetric Yang-Mills (SYM) plasma, with thickness L, focusing on what comes out on the other side. We find that even when the “jets” that emerge from the plasma have lost a substantial fraction of their energy they look in almost all respects like “jets” in vacuum with the same reduced energy. The one possible exception is that the opening angle of the “jet” is larger after passage through the slab of plasma than before. Along the way, we obtain a fully geometric characterization of energy loss in the strongly coupled plasma and show that dE[subscript out]/dL ∝ L[superscript 2]/√x[2 over stop] − L[superscript 2], where E[subscript out] is the energy of the “jet” that emerges from the slab of plasma and x[subscript stop] is the (previously known) stopping distance for the light quark in an infinite volume of plasma.
Date issued
2014-07
URI
http://hdl.handle.net/1721.1/88667
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Chesler, Paul M., and Krishna Rajagopal. "Jet quenching in strongly coupled plasma." Phys. Rev. D 90, 025033 (July 2014). © 2014 American Physical Society
Version: Final published version
ISSN
1550-7998
1550-2368

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