Let there be light from a second light Higgs doublet
Let there be light from a second light Higgs doublet
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DOI：
10.1007/jhep03(2018)135
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发表时间：
2017-12
影响因子：
5.4
通讯作者：
U. Haisch;A. Malinauskas
中科院分区：
文献类型：
--
作者：
U. Haisch;A. Malinauskas
在这篇文章中，我们证明了在95 GeV附近的意外峰值，最近看到的CMS在双光子的最终状态，可以解释在I型双希格斯偶极子模型中的一个中度到强烈的费米疏CP-甚至希格斯H。根据希格斯粒子的质量谱，这种H的产生主要来自于矢量玻色子融合，或者通过pp→ A与A→ W <$H±→ W <$H ±或pp→ W <$H ± → H±H的级联。在这种情况下，我们还讨论了其他希格斯异常，如LEP过剩的Higgsstrahlung和观察增强率在Tevatron和LHC，表明能够解释CMS双光子信号的参数可以解决后者的偏差。我们探索的希格斯光谱包括80 GeV和350 GeV之间的质量。虽然目前所有的限制，从直接和间接搜索自旋0共振可以证明是满足这样的轻希格斯玻色子，未来的大型强子对撞机的数据将能够探测的参数空间，导致同时解释所讨论的异常。
In this article, we demonstrate that the unexpected peak at around 95 GeV as seen recently by CMS in the di-photon final state can be explained within the type-I two-Higgs-doublet model by means of a moderately-to-strongly fermiophobic CP-even Higgs H. Depending on the Higgs mass spectrum, the production of such a H arises dominantly from vector boson fusion or through a cascade in eitherwithor pp→ A with A→ W∓ H±→ W∓ W±H or via pp→ W±∗→ H±H. In this context, we also discuss other Higgs anomalies such as the LEP excess in Higgsstrahlung and the observation of enhanced rates inat both the Tevatron and the LHC, showing that parameters capable of explaining the CMS di-photon signal can address the latter deviations as well. The Higgs spectra that we explore comprise masses between 80 GeV and 350 GeV. While at present all constraints from direct and indirect searches for spin-0 resonances can be shown to be satisfied for such light Higgses, future LHC data will be able to probe the parameter space that leads to a simultaneous explanation of the discussed anomalies.