Multi-Parton Loop Amplitudes and Next-to-Leading Order Jet Cross-Sections
| dc.creator | Bern, Z. | |
| dc.creator | Dixon, L. | |
| dc.creator | Kosower, D. A. | |
| dc.creator | Signer, A. | |
| dc.date | 1998-02-06 | |
| dc.date.accessioned | 2026-07-07T04:03:26Z | |
| dc.date.available | 2026-07-07T04:03:26Z | |
| dc.description | We 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\bar{q}ggg and q\bar{q}q'\bar{q}'g), and for an intermediate vector boson V \equiv γ^*,Z,W plus four external partons (Vq\bar{q}gg and Vq\bar{q}q'\bar{q}'). Using these amplitudes, numerical programs have been constructed for the next-to-leading order corrections to the processes p\bar{p} to 3 jets (ignoring quark contributions so far) and e^+e^- to 4 jets. | |
| dc.description | Latex2e with sprocl.sty, 19 pages with 5 encapsulated figures, presented at International Symposium on QCD Corrections and New Physics, Hiroshima, Japan, October 27-29, 1997 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9802264 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9802264 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/47657 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Multi-Parton Loop Amplitudes and Next-to-Leading Order Jet Cross-Sections | |
| dc.type | text |