Neutralino annihilation to q qbar g

Details Neutralino annihilation to q qbar g Neutralino annihilation to q qbar g

2006-08-18

arxiv.org/abs/hep-ph/0608215v3

Phys.Rev.D74:075005,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure; v2: refs added; v3: version to appear in PRD

Scientific paper

10.1103/PhysRevD.74.075005

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).

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