Efficient analytic computation of higher-order QCD amplitudes

Conference · Wed Mar 01 00:00:00 EST 1995

OSTI ID:28395

Bern, Z; Chalmers, G ^[1]; Dixon, L ^[2]; Dunbar, D C ^[3]; Kosower, D A ^[4]

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1. Univ. of California, Los Angeles, CA (United States). Dept of Physics
2. Stanford Linear Accelerator Center, Menlo Park, CA (United States)
3. Univ. Coll. of Swansea (United Kingdom)
4. Centre d`Etudes de Saclay, Gif-sur-Yvette (France). Service de Physique Theorique

The authors review techniques simplifying the analytic calculation of one-loop QCD amplitudes with many external legs, for use in next-to-leading-order corrections to multi-jet processes. Particularly useful are the constraints imposed by perturbative unitarity, collinear singularities and a supersymmetry-inspired organization of helicity amplitudes. Certain sequences of one-loop helicity amplitudes with an arbitrary number of external gluons have been obtained using these constraints.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States); California Univ., Los Angeles, CA (United States). Dept. of Physics
• Sponsoring Organization: USDOE, Washington, DC (United States); Sloan (Alfred P.) Foundation, New York, NY (United States); National Science Foundation, Washington, DC (United States); CEA, 75 - Paris (France); North Atlantic Treaty Organization, Brussels (Belgium)
• DOE Contract Number: AC03-76SF00515; FG03-91ER40662
• OSTI ID: 28395
• Report Number(s): SLAC-PUB-95-6771; CONF-941251-2; ON: DE95008593; IN: hep-ph/9503261; CNN: Grant BR-3222; Grant PHY-9218990; Grant CRG-921322; Grant CRG-910285; TRN: 95:008515
• Resource Relation: Conference: 4. international conference on physics beyond the standard model, Lake Tahoe, CA (United States), 13-18 Dec 1994; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
QUANTUM CHROMODYNAMICS
AMPLITUDES
ANALYTICAL SOLUTION
TRANSITION AMPLITUDES
SUPERSYMMETRY
QUANTUM NUMBERS