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Explicit modular invariant two-loop superstring amplitude relevant for R-4
Iengo, R; Zhu, CJ; Iengo, R , Scuola Int Super Studi Avanzati, Ist Nazl Fis Nucl, Sez Trieste, Via Beirut 4, I-34013 Trieste, Italy.
1999
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
期号6页码:-
摘要In this note we derive an explicit modular invariant formula for the two loop 4-point amplitude in superstring theory in terms of a multiple integral (7 complex integration variables) over the complex plane which is shown to be convergent. We consider in particular the case of the leading term for vanishing momenta of the four graviton amplitude, which would correspond to the two-loop correction of the R-4 term in the effective Action. The resulting expression is not positive definite and could be zero, although we cannot see that it vanishes.
部门归属Scuola Int Super Studi Avanzati, Ist Nazl Fis Nucl, Sez Trieste, I-34013 Trieste, Italy; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词String Theory 2-loop
学科领域Physics
收录类别SCI
WOS记录号WOS:000082651800011
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13098
专题理论物理所1978-2010年知识产出
通讯作者Iengo, R , Scuola Int Super Studi Avanzati, Ist Nazl Fis Nucl, Sez Trieste, Via Beirut 4, I-34013 Trieste, Italy.
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GB/T 7714
Iengo, R,Zhu, CJ,Iengo, R , Scuola Int Super Studi Avanzati, Ist Nazl Fis Nucl, Sez Trieste, Via Beirut 4, I-34013 Trieste, Italy.. Explicit modular invariant two-loop superstring amplitude relevant for R-4[J]. JOURNAL OF HIGH ENERGY PHYSICS,1999(6):-.
APA Iengo, R,Zhu, CJ,&Iengo, R , Scuola Int Super Studi Avanzati, Ist Nazl Fis Nucl, Sez Trieste, Via Beirut 4, I-34013 Trieste, Italy..(1999).Explicit modular invariant two-loop superstring amplitude relevant for R-4.JOURNAL OF HIGH ENERGY PHYSICS(6),-.
MLA Iengo, R,et al."Explicit modular invariant two-loop superstring amplitude relevant for R-4".JOURNAL OF HIGH ENERGY PHYSICS .6(1999):-.
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