Full one-loop amplitudes from tree amplitudes

被引：207

作者：

Giele, Walter T. ^{[1
]}

Kunszt, Zoltan ^{[2
]}

Melnikov, Kirill ^{[3
]}

机构：

[1] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA

[2] ETH, Inst Theoret Phys, CH-8093 Zurich, Switzerland

[3] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2008年 / 04期

关键词：

NLO computations; QCD;

D O I：

10.1088/1126-6708/2008/04/049

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We establish an efficient polynomial-complexity algorithm for one-loop calculations, based on generalized D-dimensional unitarity. It allows automated computations of both cut-constructible and rational parts of one-loop scattering amplitudes from on-shell tree amplitudes. We illustrate the method by (re)-computing all four-, five- and six-gluon scattering amplitudes in QCD at one-loop.

引用

页数：23

共 50 条

[41] Progress in calculating hexagon amplitudes at one-loop
Binoth, T
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2003, 116 : 387 - 391
[42] Traces on orbifolds: anomalies and one-loop amplitudes
Nibbelink, SG
JOURNAL OF HIGH ENERGY PHYSICS, 2003, (07):
[43] ONE-LOOP AMPLITUDES IN MODEL OF NEVEU AND SCHWARZ
GODDARD, P
WALTZ, RE
NUCLEAR PHYSICS B, 1971, B 34 (01) : 99 - &
[44] Augmented recursion for one-loop gravity amplitudes
David C. Dunbar
James H. Ettle
Warren B. Perkins
Journal of High Energy Physics, 2010
[45] Fermionic one-loop amplitudes of the RNS superstring
Lee, Seungjin
Schlotterer, Oliver
JOURNAL OF HIGH ENERGY PHYSICS, 2018, (03):
[46] Decomposition of one-loop QCD amplitudes into primitive amplitudes based on shuffle relations
Reuschle, Christian
Weinzierl, Stefan
PHYSICAL REVIEW D, 2013, 88 (10):
[47] One-loop string corrections to AdS amplitudes from CFT
J.M. Drummond
H. Paul
Journal of High Energy Physics, 2021
[48] One-loop amplitudes in supersymmetric QCD from MHV vertices
Kunitomo, Hiroshi
PROGRESS OF THEORETICAL PHYSICS, 2006, 116 (02): : 363 - 403
[49] One-loop Higgs plus four gluon amplitudes: full analytic results
Badger, Simon
Glover, E. W. Nigel
Mastrolia, Pierpaolo
Williams, Ciaran
JOURNAL OF HIGH ENERGY PHYSICS, 2010, (01):
[50] Graviton bending in quantum gravity from one-loop amplitudes
Chi, Huan-Hang
PHYSICAL REVIEW D, 2019, 99 (12):

← 1 2 3 4 5 →