arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1004.2741hep-phastro-ph.CO
收藏

MSSM暴胀、暗物质和LHC

MSSM inflation, dark matter, and the LHC

Rouzbeh Allahverdi, Bhaskar Dutta, Yudi Santoso

摘要:

暴胀可以发生在最小超对称标准模型的平坦方向势的拐点附近。在本文中,我们阐述了宇宙微波背景测量,暗物质和粒子物理现象学的边界之间的互补性,在确定MSSM暴胀的基本参数,专门为最小超引力的情况。我们表明,未来的测量从大型强子对撞机串联所有这些约束将显着限制允许的参数空间。我们还提出了一个新的角度对微调问题的MSSM通货膨胀。考虑到量子修正,暴胀子势中的软超对称破缺参数之间的必要条件可以在感兴趣的尺度下得到满足,而无需在高尺度下微调它们的边界值。这种情况发生在拐点的要求决定了一个无量纲的耦合,它与拉格朗日中不可重整的相互作用项有关,并且与现象学无关,精度很高。

英文摘要:

Inflation can occur near a point of inflection in the potential of flat directions of the Minimal Supersymmetric Standard Model. In this paper we elaborate on the complementarity between the bounds from Cosmic Microwave Background measurements, dark matter and particle physics phenomenology in determining the underlying parameters of MSSM inflation by specializing to the Minimal Supergravity scenario. We show that the future measurements from the Large Hadron Collider in tandem with all these constraints will significantly restrict the allowed parameter space. We also suggest a new perspective on the fine tuning issue of MSSM inflation. With quantum corrections taken into account, the necessary condition between the soft supersymmetry breaking parameters in the inflaton potential can be satisfied at scales of interest without a fine tuning of their boundary values at a high scale. The requirement that this happens at the inflection point determines a dimensionless coupling, which is associated with a non-renormalizable interaction term in the Lagrangian and has no bearing for phenomenology, to very high accuracy.

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。

↑