SNU NAPP Seminar

[CTP Seminar] Non-perturbative determination of thermal Sommerfeld effect

by Prof. Seyong Kim (Sejong University)

ROK
521 (B56)

521

B56

서울대학교 자연과학대학 물리천문학부 [Department of Physics and Astronomy, Seoul National University] : <a href="https://goo.gl/maps/dt7QDbfyTSJ2" target="_blanck" >Location</a>
Description

* Speaker : Prof. Seyong Kim (Sejong University)

* Abstract : Using Non-relativistic formulation of Euclidean lattice field theory, we calculate non-perturbatively the Sommerfeld enhancement factor associated with the heavy quark--anti-heavy co-annihilation in a thermal bath of quark-gluon plasma. We found a large enhancement in the color singlet channel and a modest suppresion in the color octet channel and suggest that this large enhancement comes from a bound state formation by considering a perturbative calculation of the Sommerfeld factor with/without a bound state formation. Similar consideration may be generalized to a class of dark matter models.

Slides