343 citations · 5.9k across the 109 of their papers we have counts for
7 papers · 1 filter
Inverse Hierarchy Approach to Fermion Masses
Z. G. Berezhiani, R. Rattazzi
The first fermion family might play a special role in understanding the physics of flavour. This possibility is suggested by the observation that the up-down splitting within quark…
Radiative Origin of the Fermion Mass Hierarchy: A Realistic and Predictive Approach
Zurab Berezhiani, Riccardo Rattazzi
The up-down splitting within quark families increases with the family number: m_u ~ m_d, m_c > m_s, m_t >> m_b. We show an approach that realizes this feature of the spectrum in a…
Planck Scale Effects on the Majoron
E. Kh. Akhmedov, Z. G. Berezhiani, R. N. Mohapatra +1
The hypothesis that non-perturbative gravitational effects lead to explicit breaking of global symmetries is considered in the context of Majoron models. We find that the nonvanish…
17 keV neutrino and large magnetic moment solution of the solar neutrino puzzle
Eugeni Akhmedov, Zurab Berezhiani, Goran Senjanovic +1
Zee-type models with Majorons naturally incorporate the 17 keV neutrino but in their minimal version fail to simultaneously solve the solar neutrino puzzle. If there is a sterile n…
Planck scale effects in neutrino physics
Eugeni Akhmedov, Zurab Berezhiani Goran Senjanovic, Zhijian Tao
We study the phenomenology and cosmology of the Majoron (flavon) models of three active and one inert neutrino paying special attention to the possible (almost) conserved generaliz…
Observable Majoron Emission in Neutrinoless Double Beta Decay
Z Berezhiani, A Yu Smirnov, J W F Valle
We consider a class of simplest Majoron models where neutrino- majoron couplings can be in the range leading to the observability of neutrinoless double be…