Augmented recursion for one-loop gravity amplitudes

被引：23

作者：

Dunbar, David C. ^{[1
]}

Ettle, James H. ^{[1
]}

Perkins, Warren B. ^{[1
]}

机构：

[1] Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2010年 / 06期

关键词：

Models of Quantum Gravity; NLO Computations; TREE AMPLITUDES; SCATTERING-AMPLITUDES; UNITARITY; SUPERGRAVITY; FEYNMAN;

D O I：

10.1007/JHEP06(2010)027

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 present a semi-recursive method for calculating the rational parts of one-loop gravity amplitudes which utilises axial gauge diagrams to determine the non-factorising pieces of the amplitude. This method is used to compute the amplitudes M1-loop(1(-), 2(+), 3(+), 4(+), 5(+)) and M1-loop(1(-), 2(+), 3(+), 4(+), 5(+), 6(+)).

引用

页数：24

共 55 条

[1]

ALSTON S, ONE LOOP AM IN PRESS

[2] 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)

[3] d-dimensional unitarity cut method [J].

Anastasiou, Charalampos ;

Britto, Ruth ;

Feng, Bo ;

Kunszt, Zoltan ;

Mastrolia, Pierpaolo .

PHYSICS LETTERS B, 2007, 645 (2-3) :213-216

[4] Direct extraction of one loop rational terms [J].

Badger, S. D. .

JOURNAL OF HIGH ENERGY PHYSICS, 2009, (01)

[5] A recursion relation for gravity amplitudes [J].

Bedford, J ;

Brandhuber, A ;

Spence, B ;

Travaglini, G .

NUCLEAR PHYSICS B, 2005, 721 :98-110

[6] 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)

[7] Bootstrapping one-loop QCD amplitudes with general helicities [J].

Berger, Carola F. ;

Bern, Zvi ;

Dixon, Lance J. ;

Forde, Darren ;

Kosower, David A. .

PHYSICAL REVIEW D, 2006, 74 (03)

[8] All one-loop maximally helicity violating gluonic amplitudes in QCD [J].

Berger, Carola F. ;

Bern, Zvi ;

Dixon, Lance J. ;

Forde, Darren ;

Kosower, David A. .

PHYSICAL REVIEW D, 2007, 75 (01)

[9] One-loop self-dual and N=4 super Yang-Mills [J].

Bern, Z ;

Dixon, L ;

Dunbar, DC ;

Kosower, DA .

PHYSICS LETTERS B, 1997, 394 (1-2) :105-115

[10] Massive loop amplitudes from unitarity [J].

Bern, Z ;

Morgan, AG .

NUCLEAR PHYSICS B, 1996, 467 (03) :479-509

← 1 2 3 4 5 6 →