Full one-loop amplitudes from tree amplitudes

被引：206

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

[1] One-loop corrections from higher dimensional tree amplitudes
Freddy Cachazo
Song He
Ellis Ye Yuan
Journal of High Energy Physics, 2016
[2] One-loop corrections from higher dimensional tree amplitudes
Cachazo, Freddy
He, Song
Yuan, Ellis Ye
JOURNAL OF HIGH ENERGY PHYSICS, 2016, (08):
[3] Twistor approach to one-loop amplitudes
Brandhuber, A
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2006, 559 (01): : 289 - 292
[4] One-loop gluon amplitudes in AdS
Alday, Luis F.
Bissi, Agnese
Zhou, Xinan
JOURNAL OF HIGH ENERGY PHYSICS, 2022, 2022 (02)
[5] ONE-LOOP MULTIPHOTON HELICITY AMPLITUDES
MAHLON, G
PHYSICAL REVIEW D, 1994, 49 (05): : 2197 - 2210
[6] One-loop amplitudes on the Riemann sphere
Yvonne Geyer
Lionel Mason
Ricardo Monteiro
Piotr Tourkine
Journal of High Energy Physics, 2016
[7] On the rational terms of the one-loop amplitudes
Ossola, Giovanni
Papadopoulos, Costas G.
Pittau, Roberto
JOURNAL OF HIGH ENERGY PHYSICS, 2008, (05):
[8] Augmented Recursion For One-loop Amplitudes
Dunbar, David C.
Ettle, James H.
Perkins, Warren B.
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2010, 205-06 : 74 - 79
[9] Polynomial structures in one-loop amplitudes
Britto, Ruth
Feng, Bo
Yang, Gang
JOURNAL OF HIGH ENERGY PHYSICS, 2008, (09):
[10] One-loop amplitudes on the Riemann sphere
Geyer, Yvonne
Mason, Lionel
Monteiro, Ricardo
Tourkine, Piotr
JOURNAL OF HIGH ENERGY PHYSICS, 2016, (03):

← 1 2 3 4 5 →