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Evidence for non-vanishing cosmological constant in non-SUSY superstring models
Iengo, R; Zhu, CJ; Iengo, R , SISSA, Via Beirut 4, I-34013 Trieste, Italy.
2000
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
期号4页码:-
摘要We reanalyse the computation of the cosmological constant Lambda at two loops in recently proposed superstring models without massless gravitini, both in the theta-function based formalism and by a detailed computation in the more explicit hyperelliptic description of the underlying genus two Riemann surface. Lambda is expressed as the integral over the surface moduli of an amplitude which is zero if SUSY is not completely broken, but we find it to be non vanishing in the SUSY breaking models which can be given an explicitly workable fermionic formulation. Thus unfortunately the issue of getting realistic and perturbatively viable models from Superstring Theory remains open.
部门归属SISSA, I-34013 Trieste, Italy; Ist Nazl Fis Nucl, Sez Trieste, I-34013 Trieste, Italy; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Modular Invariance String Models Construction
学科领域Physics
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收录类别SCI
WOS记录号WOS:000088805700028
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被引频次:13[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/311006/12991
专题理论物理所1978-2010年知识产出
通讯作者Iengo, R , SISSA, Via Beirut 4, I-34013 Trieste, Italy.
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Iengo, R,Zhu, CJ,Iengo, R , SISSA, Via Beirut 4, I-34013 Trieste, Italy.. Evidence for non-vanishing cosmological constant in non-SUSY superstring models[J]. JOURNAL OF HIGH ENERGY PHYSICS,2000(4):-.
APA Iengo, R,Zhu, CJ,&Iengo, R , SISSA, Via Beirut 4, I-34013 Trieste, Italy..(2000).Evidence for non-vanishing cosmological constant in non-SUSY superstring models.JOURNAL OF HIGH ENERGY PHYSICS(4),-.
MLA Iengo, R,et al."Evidence for non-vanishing cosmological constant in non-SUSY superstring models".JOURNAL OF HIGH ENERGY PHYSICS .4(2000):-.
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