Limits on neutrinophilic two-Higgs-doublet models from flavor physics
Limits on neutrinophilic two-Higgs-doublet models from flavor physics
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DOI：
10.1007/jhep01(2016)018
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发表时间：
2015-10
影响因子：
5.4
通讯作者：
E. Bertuzzo;Yuber F. Perez G.;O. Sumensari;R. Funchal
中科院分区：
文献类型：
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作者：
E. Bertuzzo;Yuber F. Perez G.;O. Sumensari;R. Funchal
在发现希格斯玻色子和混合角θ 13之后，我们从低能观测得到了嗜中微子双希格斯双重态模型的严格限制。这些衰变可以限制新带电希格斯粒子的质量（H±）和新亲中微子标量重态的真空期望值（v2）所跨越的平面。轻子风味保存衰变不能设定有意义的界限，因为它们强烈依赖于未知的中微子绝对质量尺度。另一方面，环诱导的轻子风味破坏衰变，如原子核中的μ→γ、μ→3e或μ→e是目前最好的极限。如果v2 = 1 (0)1)在90% CL下得到m H±±250 (2500)GeV。在可预见的将来，这些限制至少可以提高100倍。
We derive stringent limits on neutrinophilic two-Higgs-doublet models from low-energy observables after the discovery of the Higgs boson and of the mixing angle θ 13. These decays can constrain the plane spanned by m H±, the mass of the new charged Higgs, and v 2, the vacuum expectation value of the new neutrinophilic scalar doublet. Lepton flavor conserving decays are not able to set meaningful bounds, since they depend strongly on the unknown neutrino absolute mass scale. On the other hand, loop induced lepton flavor violating decays, such as μ→ eγ, μ→ 3e or μ→ e in nuclei are currently responsable for the best limits today. If v 2≲ 1 (0. 1) eV we get m H±≳ 250 (2500) GeV at 90% CL. In the foreseen future these limits can improve by at least a factor of 100.