Clockwork for neutrino masses and lepton flavor violation

• DOI: 10.1016/j.physletb.2018.02.047
• Publication Date: 2018-02-26T15:36:18Z
• Authors: Alejandro Ibarra; Ashwani Kushwaha; Sudhir K. Vempati
• Keywords: Clockwork

We investigate the generation of small neutrino masses in a clockwork framework which includes Dirac mass terms as well Majorana for new fermions. derive analytic formulas particles and their Yukawa couplings to lepton doublets, scenario where parameters are universal. When universal vanishes, zero mode sector forms pair with active neutrino, is agreement oscillations experiments sufficiently large number gears. On other hand, when it does not vanish, generated via seesaw mechanism. In this case, due fact that effective higher modes can be sizable, only suppressed by postulating scale. Finally, we discuss constraints on scale fermions from non-observation rare leptonic decay μ→eγ.