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High Energy Physics - Phenomenology

arXiv:hep-ph/9807570 (hep-ph)
[Submitted on 31 Jul 1998]

Title:A new approach to multi-jet calculations in hadron collisions

Authors:F. Caravaglios, M.L. Mangano, M. Moretti, R. Pittau
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Abstract: We present an algorithm to evaluate the exact, tree-level matrix elements for multi-parton processes in QCD. We tested this technique, based on the recursive evaluation of the S-matrix, on processes such as gg -> n gluons and q qbar -> n gluons, with n up to 9. The summation over colour configurations is designed to allow the construction of parton-level event generators suitable to interfacing with a parton-shower evolution including the effects of colour-coherence. This leads to a fully exclusive, hadron-level description of multi-jet final states, accurately incorporating the dynamics of large jet-jet separation angles. Explicit results for the total rates and differential distributions of processes with 8 final-state partons are given.
Comments: 17 pages, Latex, 5 figures
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: CERN-TH/98-249
Cite as: arXiv:hep-ph/9807570
  (or arXiv:hep-ph/9807570v1 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/9807570
Journal reference: Nucl.Phys.B539:215-232,1999
Related DOI: https://doi.org/10.1016/S0550-3213%2898%2900739-1

Submission history

From: Michelangelo Mangano [view email]
[v1] Fri, 31 Jul 1998 17:29:05 UTC (54 KB)
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