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arXiv 1901.05979hep-ph
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未来$e^+ e^-$对撞机双Higgs产生的新物理

New Physics in Double Higgs Production at Future $e^+ e^-$ Colliders

Andres Vasquez, Celine Degrande, Alberto Tonero, Rogerio Rosenfeld

摘要:

我们研究了在未来的$e^+ e^-$对撞机上新物理对双希格斯粒子产生的影响。在标准模型中,手征极限($m_e=0$)在这个过程中起着重要的作用,负责树级图相对于1-环贡献的小。在我们的工作中,我们考虑的可能性,由于标准模型维六有效运营商的贡献增强。我们发现,只有两个相关的运营商,这个过程中,还没有(强烈)约束其他数据。我们进行了灵敏度研究的运营商系数的几个基准值的能量和积分亮度相关的线性对撞机,如CLIC,ILC和FCC-EE,我们得到预期的95% CL限制为每个基准方案。

英文摘要:

We study the effects of new physics in double Higgs production at future $e^+ e^-$ colliders. In the Standard Model the chiral limit ($m_e=0$) plays an important role for this process, being responsible for the smallness of the tree-level diagrams with respect to the 1-loop contributions. In our work, we consider the possibility of an enhancement due to the contribution of Standard Model dimension-six effective operators. We show that there are only two relevant operators for this process that are not yet (strongly) constrained by other data. We perform a sensitivity study on the operator coefficients for several benchmark values of energy and integrated luminosity related to the proposed linear colliders such as CLIC, ILC and FCC-ee and we derive expected 95% CL limits for each benchmark scenario.

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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