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arXiv 1105.3765hep-phhep-th
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一个新的(字符串驱动的)方法来解决小层次问题

A new (string motivated) approach to the little hierarchy problem

Daniel Feldman, Gordon Kane, Eric Kuflik, Ran Lu

摘要:

我们指出,在引力子质量,$M_{3/2}$,在(10-50)TeV的范围内,与软破缺标量质量和三线性耦合的相同的顺序,存在一个强大的参数空间区域的条件下,电弱对称性破缺(EWSB)的满足没有大的强加取消。具有稳定模量的紧致弦/M理论满足宇宙学约束,一般需要引力子质量大于约30 TeV,并为这种现象提供了自然的解释。我们发现,即使标量质量和三线性耦合(和软破断$B$参数)是(10-50)TeV的顺序,希格斯vev采取其预期值和$μ$参数自然是一个TeV的顺序。该机制提供了一个自然的解决方案,宇宙学模和引力子问题与EWSB。

英文摘要:

We point out that in theories where the gravitino mass, $M_{3/2}$, is in the range (10-50)TeV, with soft-breaking scalar masses and trilinear couplings of the same order, there exists a robust region of parameter space where the conditions for electroweak symmetry breaking (EWSB) are satisfied without large imposed cancellations. Compactified string/M-theory with stabilized moduli that satisfy cosmological constraints generically require a gravitino mass greater than about 30 TeV and provide the natural explanation for this phenomenon. We find that even though scalar masses and trilinear couplings (and the soft-breaking $B$ parameter) are of order (10-50)TeV, the Higgs vev takes its expected value and the $μ$ parameter is naturally of order a TeV. The mechanism provides a natural solution to the cosmological moduli and gravitino problems with EWSB.

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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