Unitarity Methods For One-Loop QCD Amplitudes

被引:3
作者
Perkins, Warren B. [1 ]
Warrick, Edmund [1 ]
机构
[1] Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales
关键词
SINGULARITIES;
D O I
10.1016/j.nuclphysbps.2008.12.018
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
Unitarity methods provide an efficient approach for calculating one-loop QCD amplitudes. Recent developments of these techniques are discussed and the canonical basis approach is illustrated using seven gluon scattering.
引用
收藏
页码:82 / 85
页数:4
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共 22 条
  • [1] Automated implementation of on-shell methods for one-loop amplitudes
    Berger, C. F.
    Bern, Z.
    Dixon, L. J.
    Cordero, F. Febres
    Forde, D.
    Ita, H.
    Kosower, D. A.
    Maitre, D.
    [J]. PHYSICAL REVIEW D, 2008, 78 (03):
  • [2] One-loop amplitudes for e+e- to four partons
    Bern, Z
    Dixon, L
    Kosower, DA
    [J]. NUCLEAR PHYSICS B, 1998, 513 (1-2) : 3 - 86
  • [3] DIMENSIONALLY REGULATED ONE-LOOP INTEGRALS
    BERN, Z
    DIXON, L
    KOSOWER, DA
    [J]. PHYSICS LETTERS B, 1993, 302 (2-3) : 299 - 308
  • [4] FUSING GAUGE-THEORY TREE AMPLITUDES INTO LOOP AMPLITUDES
    BERN, Z
    DIXON, L
    DUNBAR, DC
    KOSOWER, DA
    [J]. NUCLEAR PHYSICS B, 1995, 435 (1-2) : 59 - 101
  • [5] ONE-LOOP N-POINT GAUGE-THEORY AMPLITUDES, UNITARITY AND COLLINEAR LIMITS
    BERN, Z
    DIXON, L
    DUNBAR, DC
    KOSOWER, DA
    [J]. NUCLEAR PHYSICS B, 1994, 425 (1-2) : 217 - 260
  • [6] Bootstrapping multiparton loop amplitudes in QCD
    Bern, Z
    Dixon, LJ
    Kosower, DA
    [J]. PHYSICAL REVIEW D, 2006, 73 (06):
  • [7] COLOR DECOMPOSITION OF ONE-LOOP AMPLITUDES IN GAUGE-THEORIES
    BERN, Z
    KOSOWER, DA
    [J]. NUCLEAR PHYSICS B, 1991, 362 (1-2) : 389 - 448
  • [8] BERN Z, 1993, PHYS LETT B, V318, P649
  • [9] One-loop gluon scattering amplitudes in theories with N < 4 supersymmetries
    Bidder, SJ
    Bjerrum-Bohr, NEJ
    Dunbar, DC
    Perkins, WB
    [J]. PHYSICS LETTERS B, 2005, 612 (1-2) : 75 - 88
  • [10] Bjerrum-Bohr N.E. J., 2008, JHEP, V0804, P038