Neutralino annihilation to qqg

Journal Article · Sun Oct 01 00:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.075005· OSTI ID:20871331

Barger, Vernon; Shaughnessy, Gabe ^[1]; Keung, W -Y ^[2]; Logan, Heather E ^[3]

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1. Department of Physics, University of Wisconsin, 1150 University Avenue, Madison, Wisconsin 53706 (United States)
2. Physics Department, University of Illinois at Chicago, Illinois 60607-7059 (United States)
3. Ottawa-Carleton Institute for Physics, Carleton University, Ottawa K1S 5B6 (Canada)

We compute the cross section for {chi}{chi}{yields}qqg at order {alpha}{sub s}{sup 2}/M{sub q-}t{sub ilde}{sup 6} arising from interference between the tree-level and loop-induced processes. This interference term is the same order in {alpha}{sub s} as {chi}{chi}{yields}gg; for mass degenerate squarks M{sub q-tildeR}=M{sub q-}t{sub ildeL}=M{sub q-tilde} we find v{sub rel}{sigma}{sub int}=[-2m{sub {chi}}{sup 2}/3M{sub q-tilde}{sup 2}]v{sub rel}{sigma}({chi}{chi}= {yields}gg)

• OSTI ID: 20871331
• Journal Information: Physical Review. D, Particles Fields, Vol. 74, Issue 7; Other Information: DOI: 10.1103/PhysRevD.74.075005; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
CHI0-3415 MESONS
COUPLING CONSTANTS
CROSS SECTIONS
FEYNMAN DIAGRAM
GLUONS
INTERFERENCE
QUARKS
REST MASS