Limits on neutrinophilic two-Higgs-doublet models from flavor physics

作者:Bertuzzo Enrico*; Perez G Yuber F; Sumensari Olcyr*; Funchal Renata Zukanovich*
来源:The Journal of High Energy Physics, 2016, 2016(1): 018.
DOI:10.1007/JHEP01(2016)018

摘要

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 theta(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 mu -> e gamma, mu -> 3e or mu -> e in nuclei are currently responsable for the best limits today. If v(2) less than or similar to 1 (0.1) eV we get m(H +/-) greater than or similar to 250 (2500) GeV at 90% CL. In the foreseen future these limits can improve by at least a factor of 100.

  • 出版日期2016-1-5