On-Shell Unitarity Bootstrap for QCD Amplitudes [electronic resource].

Published: Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 10 pages : digital, PDF file
Additional Creators: Stanford Linear Accelerator Center, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

Seeking and measuring new physics at the imminent Large Hadron Collider (LHC) will require extensive calculations of high-multiplicity backgrounds in perturbative QCD to next-to-leading order (NLO). The Les Houches 2005 workshop defined a target list, reproduced in table 1, for theorists to attack. In addition to the processes in the table, one would also like to compute processes such as W, Z + 4 jets, which are important backgrounds to searches for supersymmetry and other models of new electroweak physics. Such computations require one-loop amplitudes with seven external particles, including the vector boson, as depicted in figure 1. These are challenging calculations and Feynman-diagrammatic computations have only recently reached six-point amplitudes. Some of this progress has been described in this conference.

Report Numbers

E 1.99:slac-pub-12064
slac-pub-12064

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Note

Published through SciTech Connect.
10/17/2006.
"slac-pub-12064"
"hep-ph/0610089"
Nucl.Phys.Proc.Suppl.160:261-270,2006
Prepared for 8th DESY Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Eisenach, Germany, 23-28 Apr 2006.
Dixon, Lance J.; Bern, Zvi; Kosower, David A.; Berger, Carola F.; Forde, Darren.

Funding Information

AC02-76SF00515

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