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arXiv 1601.05946hep-phhep-th
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NMSSM中SUSY破缺的尺度和Higgs质量

The Higgs mass and the scale of SUSY breaking in the NMSSM

Lucila Zarate

摘要:

本文研究了高尺度超对称破缺NMSSM中的Higgs质量$M_{SS}$。以标准模型作为有效低能理论,Higgs质量的计算依赖于四次耦合$λ$在$M_{SS}$的匹配条件。在MSSM中,后者被固定为半正值,因此,在$M_{SS}\simeq 10^{10}\text{GeV}$附近设置了超对称破坏尺度的上限。在NMSSM中,$λ(M_{SS})$接收由允许$λ(M_{SS})$的负值的单线态诱导的额外贡献。反过来,对于希格斯质量的测量值,我们发现$M_{SS}$可以取大统一尺度下的任何值。此外,通用软条款的选择有利于超对称破坏规模接近大统一理论规模。

英文摘要:

In this letter we study the Higgs mass in the NMSSM with supersymmetry breaking at high scales $M_{SS}$. With the Standard Model as the effective low energy theory, the computation of the Higgs mass relies on the matching condition of the quartic coupling $λ$ at $M_{SS}$. In the MSSM, the latter is fixed to a semi-positive value and, thus, sets an upper bound on the SUSY-breaking scale near $M_{SS}\simeq 10^{10}\text{GeV}$. In the NMSSM, $λ(M_{SS})$ receives an additional contribution induced by the singlet which allows for negative values of $λ(M_{SS})$. In turn, for the measured value of the Higgs mass we find that $M_{SS}$ can take any value up to the GUT scale. Furthermore, the choice of universal soft terms favors SUSY-breaking scales close to the GUT scale.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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