arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1208.5328hep-ph
收藏

在GUT尺度下具有非普适Gaugino质量的自然MSSM中的希格斯玻色子质量

The Higgs boson mass in a natural MSSM with nonuniversal gaugino masses at the GUT scale

Hiroyuki Abe, Junichiro Kawamura, Hajime Otsuka

摘要:

通过数值求解单圈重整化群方程组,我们确定了最轻CP偶希格斯玻色子质量在$124.4-126.8$ GeV的参数区域,同时在具有软超对称破缺项的最小超对称标准模型(MSSM)中,Higgsino质量参数(所谓的$μ$ -参数)的调谐度放宽到10%以上.研究发现,在所谓的大统一理论(GUT)尺度$\sim 10^{16}$ GeV的规范质量参数的某些非普适值是MSSM预测的重要成分,没有一个严重的微调,希格斯玻色子质量$\sim 125$ GeV的大型强子对撞机最近的观测表明。我们还显示了一个典型的超粒子谱在这个参数区域。

英文摘要:

We identify a parameter region where the mass of the lightest CP-even Higgs boson resides in $124.4-126.8$ GeV, and at the same time the degree of tuning a Higgsino-mass parameter (so-called $μ$-parameter) is relaxed above 10% in the minimal supersymmetric standard model (MSSM) with soft supersymmetry breaking terms, by solving the full set of one-loop renormalization group equations numerically. It is found that certain nonuniversal values of gaugino-mass parameters at the so-called grand unification theory (GUT) scale $\sim 10^{16}$ GeV are important ingredients for the MSSM to predict, without a severe fine-tuning, the Higgs boson mass $\sim 125$ GeV indicated by recent observations at the Large Hadron Collider. We also show a typical superparticle spectrum in this parameter region.

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。

↑