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Title: Multi-parton loop amplitudes and next-to-leading order jet cross-sections

Abstract

The authors review recent developments in the calculation of QCD loop amplitudes with several external legs, and their application to next-to-leading order jet production cross-sections. When a number of calculational tools are combined together--helicity, color and supersymmetry decompositions, plus unitarity and factorization properties--it becomes possible to compute multi-parton one-loop QCD amplitudes without ever evaluating analytically standard one-loop Feynman diagrams. One-loop helicity amplitudes are now available for processes with five external partons (ggggg, q{anti q}ggg and q{anti q}q {anti q}{prime} g), and for an intermediate vector boson V {equivalent_to} {gamma}{sup *}, Z, W plus four external partons (V q{anti q} and V q{anti q}q{prime}{anti q}{prime}). Using these amplitudes, numerical programs have been constructed for the next-to-leading order corrections to the processes p{anti p} {yields} 3 jets (ignoring quark contributions so far) and e{sup +}e{sup -} {yields} 4 jets.

Authors:
 [1];  [2];  [3];  [4]
  1. Univ. of California, Los Angeles, CA (US). Dept. of Physics
  2. Stanford Univ., CA (US). Stanford Linear Accelerator Center
  3. Service de Physique Theorique, Gif-sur-Yvette (France). Centre d'Etudes de Saclay
  4. CERN, Geneva (Switzerland). Theory Div.
Publication Date:
Research Org.:
Stanford Univ., Stanford Linear Accelerator Center, CA (US); Univ. of California, Dept of Physics, Los Angeles, CA (US)
Sponsoring Org.:
USDOE Office of Energy Research, Washington, DC (US); CEA, 75 - Paris (France); Swiss National Science Foundation, Bern (Switzerland); North Atlantic Treaty Organization, Brussels (Belgium) (US)
OSTI Identifier:
666073
Report Number(s):
SLAC-PUB-7749; CERN-TH-98-39; UCLA-98/TEP/2; CONF-9710149-
ON: DE98059194; CNN: Grant NATO CRG-921322; TRN: US200306%%113
DOE Contract Number:  
AC03-76SF00515; FG03-91ER40662
Resource Type:
Conference
Resource Relation:
Conference: International symposium on QCD corrections and new physics, Hiroshima (JP), 10/27/1997--10/29/1997; Other Information: Supercedes report DE98059194; PBD: Feb 1998; PBD: 1 Feb 1998
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; COLOR; CROSS SECTIONS; FACTORIZATION; FEYNMAN DIAGRAM; HELICITY; INTERMEDIATE VECTOR BOSONS; PARTONS; PHYSICS; QUANTUM CHROMODYNAMICS; QUARKS; SUPERSYMMETRY; UNITARITY

Citation Formats

Bern, Z, Dixon, L, Kosower, D A, and Signer, A. Multi-parton loop amplitudes and next-to-leading order jet cross-sections. United States: N. p., 1998. Web.
Bern, Z, Dixon, L, Kosower, D A, & Signer, A. Multi-parton loop amplitudes and next-to-leading order jet cross-sections. United States.
Bern, Z, Dixon, L, Kosower, D A, and Signer, A. 1998. "Multi-parton loop amplitudes and next-to-leading order jet cross-sections". United States. https://www.osti.gov/servlets/purl/666073.
@article{osti_666073,
title = {Multi-parton loop amplitudes and next-to-leading order jet cross-sections},
author = {Bern, Z and Dixon, L and Kosower, D A and Signer, A},
abstractNote = {The authors review recent developments in the calculation of QCD loop amplitudes with several external legs, and their application to next-to-leading order jet production cross-sections. When a number of calculational tools are combined together--helicity, color and supersymmetry decompositions, plus unitarity and factorization properties--it becomes possible to compute multi-parton one-loop QCD amplitudes without ever evaluating analytically standard one-loop Feynman diagrams. One-loop helicity amplitudes are now available for processes with five external partons (ggggg, q{anti q}ggg and q{anti q}q {anti q}{prime} g), and for an intermediate vector boson V {equivalent_to} {gamma}{sup *}, Z, W plus four external partons (V q{anti q} and V q{anti q}q{prime}{anti q}{prime}). Using these amplitudes, numerical programs have been constructed for the next-to-leading order corrections to the processes p{anti p} {yields} 3 jets (ignoring quark contributions so far) and e{sup +}e{sup -} {yields} 4 jets.},
doi = {},
url = {https://www.osti.gov/biblio/666073}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 1998},
month = {Sun Feb 01 00:00:00 EST 1998}
}

Conference:
Other availability
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