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Finite-temperature supersymmetry: the Wess-Zumino model

机译:有限温度超对称:Wess-Zumino模型

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We investigate the breakdown of supersymmetry at finite temperature. While it has been proven that temperature always breaks supersymmetry, the nature of this breaking is less clear. On the one hand, a study of the Ward-Takahashi identities suggests a spontaneous breakdown of supersymmetry without the existence of a Goldstino, while on the other hand it has been shown that in any supersymmetric plasma there should exist a massless fermionic collective excitation, the phonino. Aim of this work is to unify these two approaches. For the Wess-Zumino model, it is shown that the phonino exists and contributes to the supersymmetric Ward-Takahashi identities in the right way displaying that supersymmetry is broken spontaneously with the phonino as the Goldstone fermion. (C) 2003 Elsevier Science (USA). All rights reserved. [References: 20]
机译:我们研究了在有限温度下超对称的分解。尽管已经证明温度总是会破坏超对称性,但这种破坏的性质尚不清楚。一方面,对Ward-Takahashi恒等式的研究表明,超对称性自然而然地破裂,而没有Goldstino的存在;另一方面,已经证明,在任何超对称等离子体中,都应该存在无质量的费米离子集体激发,即菲尼诺。这项工作的目的是统一这两种方法。对于Wess-Zumino模型,表明声子的存在并以正确的方式促进了超对称Ward-Takahashi身份的出现,表明声子作为戈德斯通费米子自然地打破了超对称性。 (C)2003 Elsevier Science(美国)。版权所有。 [参考:20]

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