Twistor-space recursive formulation of gauge-theory amplitudes

被引：58

作者：

Bena, I ^{[1
]}

Bern, Z

Kosower, DA

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[2] CEA Saclay, Serv Phys, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW D | 2005年 / 71卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.71.045008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using twistor-space intuition, Cachazo, Svrcek and Witten presented novel diagrammatic rules for gauge-theory amplitudes, expressed in terms of maximally helicity-violating (MHV) vertices. We define non-MHV vertices, and show how to use them to give a recursive construction of these amplitudes. We also use them to illustrate the equivalence of various twistor-space prescriptions, and to determine the associated combinatoric factors.

引用

页码：045008 / 1

页数：14

共 55 条

[11] RECURSIVE CALCULATIONS FOR PROCESSES WITH N GLUONS [J].

BERENDS, FA ;

GIELE, WT .

NUCLEAR PHYSICS B, 1988, 306 (04) :759-808

[12] SINGLE BREMSSTRAHLUNG PROCESSES IN GAUGE-THEORIES [J].

BERENDS, FA ;

KLEISS, R ;

DECAUSMAECKER, P ;

GASTMANS, R ;

WU, TT .

PHYSICS LETTERS B, 1981, 103 (02) :124-128

[13] Alternative string theory in twistor space for N=4 super-Yang-Mills theory -: art. no. 011601 [J].

Berkovits, N .

PHYSICAL REVIEW LETTERS, 2004, 93 (01) :011601-1

[14]

Berkovits N, 2004, J HIGH ENERGY PHYS

[15]

BERKOVITS N, HEPTH0406051

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

Bern, Z ;

Morgan, AG .

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

[17]

Bern Z, 2004, J HIGH ENERGY PHYS, DOI 10.1088/1126-6708/2004/08/012

[18] FUSING GAUGE-THEORY TREE AMPLITUDES INTO LOOP AMPLITUDES [J].

BERN, Z ;

DIXON, L ;

DUNBAR, DC ;

KOSOWER, DA .

NUCLEAR PHYSICS B, 1995, 435 (1-2) :59-101

[19] ONE-LOOP N-POINT GAUGE-THEORY AMPLITUDES, UNITARITY AND COLLINEAR LIMITS [J].

BERN, Z ;

DIXON, L ;

DUNBAR, DC ;

KOSOWER, DA .

NUCLEAR PHYSICS B, 1994, 425 (1-2) :217-260

[20] ONE-LOOP CORRECTIONS TO 2-QUARK 3-GLUON AMPLITUDES [J].

BERN, Z ;

DIXON, L ;

KOSOWER, DA .

NUCLEAR PHYSICS B, 1995, 437 (02) :259-304

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