Neutralino annihilation to q qbar g
High Energy Physics - Phenomenology
2008-11-26 v3
Abstract
We compute the cross section for chi chi -> q qbar g at order alpha_s^2/M_{squark}^6 arising from interference between the tree-level and loop-induced processes. This interference term is the same order in alpha_s as chi chi -> gg; for mass degenerate squarks M_{squark_R} = M_{squark_L} = M_{squark} we find v_{rel} sigma_{int} = [-2 m_{chi}^2 / 3 M_{squark}^2] v_{rel} sigma(chi chi -> gg).
Cite
@article{arxiv.hep-ph/0608215,
title = {Neutralino annihilation to q qbar g},
author = {Vernon Barger and Wai-Yee Keung and Heather E. Logan and Gabe Shaughnessy},
journal= {arXiv preprint arXiv:hep-ph/0608215},
year = {2008}
}
Comments
13 pages, 1 figure; v2: refs added; v3: version to appear in PRD