Radiative p⊥-broadening of fast partons in an expanding quark-gluon plasma

We study contribution of radiative processes to p perpendicular to -broadening of fast partons in an expanding quark-gluon plasma. It is shown that the radiative correction to p perpendicular to 2 for the QGP produced in AA-collisions at RHIC and LHC may be negative, and comparable in absolute value with the non-radiative contribution. We have found that the QGP expansion enhances the radiative suppression of p perpendicular to -broadening as compared to the static medium.

Automated summary

The study finds that the radiative contribution to p⊥ broadening of fast partons in an expanding quark-gluon plasma may be negative and comparable in absolute value with the non-radiative contribution in AA collisions at RHIC and LHC. Additionally, it is discovered that the expansion of the QGP enhances the radiative suppression of p⊥ broadening compared to a static medium.