golem95: A numerical program to calculate one-loop tensor integrals with up to six external legs

被引：113

作者：

Binoth, T. ^{[2
]}

Guillet, J. -Ph. ^{[3
,4
]}

Heinrich, G. ^{[1
]}

Pilon, E. ^{[3
,4
]}

Reiter, T. ^{[5
]}

机构：

[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England

[2] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Univ Savoie, LAPTH, Annecy Le Vieux, France

[4] CNRS, Annecy Le Vieux, France

[5] NIKHEF, NL-1098 SJ Amsterdam, Netherlands

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2009年 / 180卷 / 11期

关键词：

NLO computations; One-loop diagrams; QCD; Hadron colliders; FEYNMAN DIAGRAMS; AMPLITUDES; FEYNARTS; SPACE;

D O I：

10.1016/j.cpc.2009.06.024

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We present a program for the numerical evaluation of form factors entering the calculation of one-loop amplitudes with up to six external legs. The program is written in Fortran95 and performs the reduction to a certain set of basis integrals numerically. using a formalism where inverse Gram determinants can be avoided. It can be used to Calculate one-loop amplitudes with massless internal particles in a fast and numerically stable way.

引用

页码：2317 / 2330

页数：14

共 47 条

[1] Unitarity cuts and reduction to master integrals in d dimensions for one-loop amplitudes [J].

Anastasiou, Charalampos ;

Britto, Ruth ;

Feng, Bo ;

Kunszt, Zoltan ;

Mastrolia, Pierpaolo .

JOURNAL OF HIGH ENERGY PHYSICS, 2007, (03)

[2]

[Anonymous], 2007, Numerical Recipes

[3] Automated implementation of on-shell methods for one-loop amplitudes [J].

Berger, C. F. ;

Bern, Z. ;

Dixon, L. J. ;

Cordero, F. Febres ;

Forde, D. ;

Ita, H. ;

Kosower, D. A. ;

Maitre, D. .

PHYSICAL REVIEW D, 2008, 78 (03)

[4] DIMENSIONALLY REGULATED ONE-LOOP INTEGRALS [J].

BERN, Z ;

DIXON, L ;

KOSOWER, DA .

PHYSICS LETTERS B, 1993, 302 (2-3) :299-308

[5] DIMENSIONALLY-REGULATED PENTAGON INTEGRALS [J].

BERN, Z ;

DIXON, L ;

KOSOWER, DA .

NUCLEAR PHYSICS B, 1994, 412 (03) :751-816

[6]

BERN Z, 08030494 HEPPH

[7] On-shell methods in perturbative QCD [J].

Bern, Zvi ;

Dixon, Lance J. ;

Kosower, David A. .

ANNALS OF PHYSICS, 2007, 322 (07) :1587-1634

[8]

BERNICOT C, 2008, 08040749 HEPPH

[9]

BERNICOT C, 2008, JHEP, V801

[10] Reduction formalism for dimensionally regulated one-loop N-point integrals [J].

Binoth, T ;

Guillet, JP ;

Heinrich, G .

NUCLEAR PHYSICS B, 2000, 572 (1-2) :361-386

← 1 2 3 4 5 →