Angular structure of energy losses of hard jet in dense QCD-matter

Details Angular structure of energy losses of hard jet in dense QCD-matter Angular structure of energy losses of hard jet in dense QCD-matter

1998-05-12

arxiv.org/abs/hep-ph/9805292v3

Phys.Lett. B440 (1998) 163-169

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX + 1 figure, epsfig.sty

Scientific paper

10.1016/S0370-2693(98)01089-2

Angular structure of radiative and collisional energy losses of a hard parton jet propagating through dense QCD-matter is investigated. For small angular jet cone sizes, $\theta_0 < 5^0$, the radiative energy loss is shown to dominate over the collisional energy loss due to final state elastic rescattering of the hard projectile on thermal particles in the medium. Due to coherent effects, the radiative energy loss decreases with increasing the angular size the jet. It becomes comparable with the collisional energy loss for $\theta_0 > 5^0-10^0$.

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