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 1607.03447hep-ph
收藏

中微子-信使混合的希格斯质量

Higgs mass from neutrino-messenger mixing

Pritibhajan Byakti, Charanjit K Khosa, V. S. Mummidi, Sudhir K Vempati

摘要:

125 GeV希格斯粒子的发现对规范调解的最小信使模型提出了强有力的限制,将停止质量推入多TeV区域。扩展这些模型的物质信使混合条款已被提出来产生一个大的三线性参数,$A_t$,放松这些限制。到目前为止,对这些模型的详细研究\cite{Byakti:2013ti,Evans:2013kxa}只考虑了MSSM超场的信使混合。在目前的工作中,我们扩大调查MSSM与反跷跷板机制。在反跷跷板模型中,中微子-超中微子对希格斯质量的修正在最小规范中介模型中并不重要,除非考虑信使-物质相互作用项。我们对所有可能的信使-物质相互作用模型进行了分类,并进行了彻底的数值分析,以找出有前途的模型。我们发现,在17个可能的模型中,有9个模型可以导致希格斯质量在观测值内,而不会显着提高sfermion质量。成功的模型有停止质量$\sim $ 1.5 TeV与小或可忽略不计的混合,但轻CP甚至希格斯在125 GeV。

英文摘要:

The discovery of the Higgs particle at 125 GeV has put strong constraints on minimal messenger models of gauge mediation, pushing the stop masses into the multi-TeV regime. Extensions of these models with matter-messenger mixing terms have been proposed to generate a large trilinear parameter, $A_t$, relaxing these constraints. The detailed survey of these models \cite{Byakti:2013ti,Evans:2013kxa} so far considered messenger mixings with only MSSM superfields. In the present work, we extend the survey to MSSM with inverse-seesaw mechanism. The neutrino-sneutrino corrections to the Higgs mass in the inverse seesaw model are not significant in the minimal gauge mediation model, unless one considers messenger-matter interaction terms. We classify all possible models with messenger-matter interactions and perform thorough numerical analysis to find out the promising models. We found that out of the 17 possible models 9 of them can lead to Higgs mass within the observed value without raising the sfermion masses significantly. The successful models have stop masses $\sim $1.5 TeV with small or negligible mixing and yet a light CP even Higgs at 125 GeV.

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。

↑