Glueball-induced partonic energy loss in quark-gluon plasma

We discuss the energy loss of energetic parton jets in quark-gluon plasma above the deconfinement temperature $T_c$ by the interaction with scalar and pseudoscalar glueballs. It is shown that the loss by this mechanism is quite important and may play the important role of the observed jet quenching.

Figure 1

Diagrams contributing to gluon (a, b, d) and quark (c, d) energy losses. The g (G) denotes gluon (glueball) and the q denotes quark.

Figure 2

Temperature dependence of gluon energy loss. The solid (dashed) line is the glueball (pQCD) contribution.

Figure 3

Temperature dependence of quark energy loss. The notations are same as in Fig. 2.