Abstract: (IOP)
We present the configuration in which a quark-antiquark pair with a fixed opening angle emits a hard gluon inside a medium, and an additional very soft emission afterwards (double antenna). We discuss the coherence effects in terms of the survival probability, which describes the interaction of the qqˉ\bar{q}g system with the medium. We generalize previous studies of the antenna radiation to the case of more than two emitters and prove that this generalization provides further support to the picture of jet quenching with effective emitters in the parton cascade.
  • quark antiquark: pair
  • coherence: effect
  • color: coherence
  • parton: cascade
  • jet: quenching
  • gluon: production
  • nuclear matter