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Two-loop superstrings in hyperelliptic language I: the main results
Zheng, ZJ; Wu, JB; Zhu, CJ; Zheng, ZJ , Henan Univ, Math Inst, Kaifeng 475001, Peoples R China.
2003
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号559期号:40910页码:89-98
摘要Following the new gauging fixing method of D'Hoker and Phong, we study two-loop superstrings in hyperelliptic language. By using hyperelliptic representation of genus 2 Riemann surface we derive a set of identities, involving the Szego kernel. These identities are used to prove the vanishing of the cosmological constant and the non-renormalization theorem point-wise in moduli space by doing the summation over all the 10 even spin structures. Modular invariance is maintained at every stage of the computation explicitly. The 4-particle amplitude is also computed and an explicit expression for the chiral integrand is obtained. We use this result to show that the perturbative correction to the R-4 term in type II superstring theories is vanishing at two loops. In this Letter, a summary of the main results is presented with detailed derivations to be provided in two subsequent publications. (C) 2003 Published by Elsevier Science B.V.
部门归属Henan Univ, Math Inst, Kaifeng 475001, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Peking Univ, Sch Phys, Beijing 100871, Peoples R China
关键词Heterotic String Theory 2-loop Superstrings Cosmological Constant Amplitudes Surfaces
学科领域Physics
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收录类别SCI
WOS记录号WOS:000182250400011
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被引频次:21[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/311006/13320
专题理论物理所1978-2010年知识产出
通讯作者Zheng, ZJ , Henan Univ, Math Inst, Kaifeng 475001, Peoples R China.
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GB/T 7714
Zheng, ZJ,Wu, JB,Zhu, CJ,et al. Two-loop superstrings in hyperelliptic language I: the main results[J]. PHYSICS LETTERS B,2003,559(40910):89-98.
APA Zheng, ZJ,Wu, JB,Zhu, CJ,&Zheng, ZJ , Henan Univ, Math Inst, Kaifeng 475001, Peoples R China..(2003).Two-loop superstrings in hyperelliptic language I: the main results.PHYSICS LETTERS B,559(40910),89-98.
MLA Zheng, ZJ,et al."Two-loop superstrings in hyperelliptic language I: the main results".PHYSICS LETTERS B 559.40910(2003):89-98.
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