The Wake in Mid-Central Nuclear Collisions

Abstract

It is argued that PHENIX collaboration observed for the first time the radiation of the longitudinal wake oscillations formed behind the parton penetrating the quark-gluon medium. It shifts the maximum of a hump in two-particle correlations and changes its width in the case of some special orientation of the trigger particle.

The quark–gluon medium

“…We have provided arguments [142] that this is an additional contribution in the vicinity of ∆φ = π/2 known in electrodynamics as the wake effect (see, e.g., [200]). At the same time, it is strongly influenced by the special geometry of mid-central collisions in such a way that the wake radiation at about π/4-orientation of the trigger particle can escape the overlap region much easier than wake gluons for in-and out-of-plane orientations of the trigger particle.…”

Макроскопическая Квантовая Хромодинамика И Кварк-Глюонная Плазма

“…Он был объяснен как проявление излучения от кильватерной струи, при этом ис-пользовались те же значения хромопроницаемости ϵ [12]. Было проведено также рассмотрение возможного переходного излучения на границе областей с конфайн-ментом и деконфайнментом [13].…”

Equations, chromopermittivity, and instabilities of the quark-gluon medium

“…Similar to electrodynamics [10], it is possible to get the energy-angular spectrum of emitted gluons [37] per the unit length…”