Feynman Amplitude Approach to study the Passage of a Jet in a Medium

Abstract

In the Feynman amplitude approach for coherent collisions of a jet with medium partons, the Bose-Einstein symmetry with respect to the interchange of the exchanged bosons leads to a destructive interference of the amplitudes in most regions of the phase space but a constructive interference in some other regions. As a consequence, there is a collective longitudinal momentum transfer to the scatterers along the jet direction, each scatterer carrying a substantial fraction of the incident jet longitudinal momentum. The manifestation of the Bose-Einstein interference may have been observed in angular correlations of hadrons associated with a high-p_T trigger in high-energy collisions at RHIC and LHC.

Comments: Latex 10 pages, 4 figures, talk presented at the 11th International Conference on Nucleus-Nucleus Collisions, May 27-June 1, 2012, San Antonio, TX, to be published in Journal of Physics Conference Series