Tree and loop amplitudes in open twistor string theory

被引：17
作者：
Dolan, Louise [1 ]
Goddard, Peter
机构：
[1] Univ N Carolina, Dept Phys, Chapel Hill, NC 27599 USA
[2] Inst Adv Study, Princeton, NJ 08540 USA
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 06期
关键词：
topological strings; conformail field models in string theory; string duality; supersummetric gauge theory;
D O I：
10.1088/1126-6708/2007/06/005
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 compute the one-loop gluon amplitude for the open twistor string model of Berkovits, using a symmetric form of the vertex operators. We discuss the classical solutions invarious topologies and instanton sectors and the canonical quantization of the world sheet Lagrangian. We derive the N-point functions for the gluon tree and one-loop amplitudes, and calculate a general one-loop expression for the current algebra.
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页数：40
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共 28 条
  • [1] Loops in twistor space
    Bena, I
    Bern, Z
    Kosower, DA
    Roiban, R
    [J]. PHYSICAL REVIEW D, 2005, 71 (10):
  • [2] ON RELATIONS BETWEEN MULTI-GLUON AND MULTI-GRAVITON SCATTERING
    BERENDS, FA
    GIELE, WT
    KUIJF, H
    [J]. PHYSICS LETTERS B, 1988, 211 (1-2) : 91 - 94
  • [3] RECURSIVE CALCULATIONS FOR PROCESSES WITH N GLUONS
    BERENDS, FA
    GIELE, WT
    [J]. NUCLEAR PHYSICS B, 1988, 306 (04) : 759 - 808
  • [4] Bootstrapping one-loop QCD amplitudes with general helicities
    Berger, Carola F.
    Bern, Zvi
    Dixon, Lance J.
    Forde, Darren
    Kosower, David A.
    [J]. PHYSICAL REVIEW D, 2006, 74 (03):
  • [5] All one-loop maximally helicity violating gluonic amplitudes in QCD
    Berger, Carola F.
    Bern, Zvi
    Dixon, Lance J.
    Forde, Darren
    Kosower, David A.
    [J]. PHYSICAL REVIEW D, 2007, 75 (01):
  • [6] Alternative string theory in twistor space for N=4 super-Yang-Mills theory -: art. no. 011601
    Berkovits, N
    [J]. PHYSICAL REVIEW LETTERS, 2004, 93 (01) : 011601 - 1
  • [7] Conformal supergravity in twistor-string theory
    Berkovits, N
    Witten, E
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2004, (08): : 197 - 232
  • [8] Berkovits N, 2004, J HIGH ENERGY PHYS
  • [9] CALCULATION OF GREEN-SCHWARZ SUPERSTRING AMPLITUDES USING THE N = 2 TWISTOR-STRING FORMALISM
    BERKOVITS, N
    [J]. NUCLEAR PHYSICS B, 1993, 395 (1-2) : 77 - 118
  • [10] DIMENSIONALLY-REGULATED PENTAGON INTEGRALS
    BERN, Z
    DIXON, L
    KOSOWER, DA
    [J]. NUCLEAR PHYSICS B, 1994, 412 (03) : 751 - 816
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