DEAD CONE EFFECT OF HEAVY QUARK IN MEDIUM

• DOI: 10.1142/s0218301307007568
• Publication Date: 2007-10-22T09:28:36Z
• Authors: X. M. ZHANG; D. C. ZHOU; W. C. XIANG
• Keywords: 0103 physical sciences; 01 natural sciences; 7. Clean energy

We demonstrate by using Wiedemann's gluon radiative spectrum that heavy quark radiative energy loss spectrum can be factorized as the light quark radiative energy loss spectrum times a dead cone factor in the absence of medium effect. The availability of factorial approach with a dead cone approximation in medium is studied by Djordjevic-Gyulassy (D-G) and GLV (M.Gyulassy, P.Levai and I.Vitev) formulas. The numerical results show that the factorial method with a dead cone approximation is more suitable for charm quarks than bottom quarks at both RHIC and LHC energies.