498 citations · 3.5k across the 77 of their papers we have counts for
45 papers · 1 filter
Tri-Bi-Maximal Mixing in Asymmetric Textures
Pierre Ramond
At the occasion of his eighty fifth birthday, I wish to to recognize the crucial role that my advisor, Professor Ayalam Balachandran, played in enabling me to evolve from engineeri…
Tribimaximal Mixing in the Texture
M. Jay Pérez, Moinul Hossain Rahat, Pierre Ramond +2
We extend the recently proposed model for the asymmetric texture to the up-type quark and seesaw sectors. The hierarchical up-type quark masses are…
Stitching an Asymmetric Texture with Family Symmetry
M. Jay Pérez, Moinul Hossain Rahat, Pierre Ramond +2
We propose as the underlying non-Abelian discrete family symmetry of the asymmetric texture presented in arXiv:1805.1068…
An Asymmetric TBM Texture
Moinul Hossain Rahat, Pierre Ramond, Bin Xu
We construct a texture where the Seesaw matrix is diagonalized by the TriBiMaximal (TBM) matrix with a phase. All CKM and PMNS angles are within their pdg values, and the mass rela…
Neutrino masses, the -term and
Gaoli Chen, M. Jay Pérez, Pierre Ramond
Using an -inspired form for the Dirac neutrino mass, we map the neutrino data to right-handed neutrino Majorana mass-matrix, , and investigate a special form wi…
and The Flavor Ring
Jennifer Kile, M. Jay Pérez, Pierre Ramond +1
We present the results of a numerical search for the Dirac Yukawa matrices of the Standard Model, consistent with the quark and lepton masses and their mixing angles. We assume a d…
Majorana Physics Through the Cabibbo Haze
Jennifer Kile, M. Jay Pérez, Pierre Ramond +1
We present a model in which the Supersymmetric Standard Model is augmented by the family symmetry $\bs{\m Z_7 \rtimes \m Z_3}$. Motivated by , where the charge two-thirds a…
On Mixing Supersymmetry and Family Symmetry Breakings
M Jay Perez, Pierre Ramond, Jue Zhang
We present a toy model in which the Higgs sector fields transform as non-Abelian representations of a family symmetry group, and consider the possibility that the extra family part…
The Five Instructions
Pierre Ramond
Five elementary lectures delivered at TASI 2011 on the Standard Model, its extensions to neutrino masses, flavor symmetries, and Grand-Unification.
Anomaly Conditions for Non-Abelian Finite Family Symmetries
Christoph Luhn, Pierre Ramond
Assuming that finite family symmetries are gauged, we derive discrete anomaly conditions for various non-Abelian groups. We thus provide new constraints for flavor model building,…
Tri-Bimaximal Neutrino Mixing and the Family Symmetry Z_7 x Z_3
Christoph Luhn, Salah Nasri, Pierre Ramond
The Non-Abelian finite group PSL_2(7) is the only simple subgroup of SU(3) with a complex three-dimensional irreducible representation. It has two maximal subgroups, S_4 which, alo…
Large Lepton Mixings from Continuous Symmetries
Lisa Everett, Pierre Ramond
Within the broad context of quark-lepton unification, we investigate the implications of broken continuous family symmetries which result from requiring that in the limit of exact…
Theory of Neutrinos: A White Paper
R. N. Mohapatra, S. Antusch, K. S. Babu +29
During 2004, four divisions of the American Physical Society commissioned a study of neutrino physics to take stock of where the field is at the moment and where it is going in the…
Cabibbo Haze in Lepton Mixing
AseshKrishna Datta, Lisa Everett, Pierre Ramond
Quark-lepton unification suggests Cabibbo-sized effects in lepton mixings, which we call Cabibbo haze. We give simple examples and explore possible Wolfenstein-like parametrization…
Seesaw and the Riddle of Mass
P. Ramond
The prediction of small neutrino masses through the Seesaw Mechanism and their subsequent measurement suggests that the natural cut-off of the Standard Model is very high indeed. T…
Neutrinos: Key to New Physics
P. Ramond
The Seesaw mechanism predicted tiny neutrino masses by postulating a new large scale in particle physics, using new theoretical ideas prompted by the Standard Model. It adds creden…
Chasing CHOOZ
P. Ramond
We relate the MNS and CKM mixing matrices using ideas from grand unification. We catalog models in terms of the family symmetries of the down quark mass matrices, and emphasize the…
Neutrinos: Windows to Planck Physics
P. Ramond
After recalling some elegant contributions of the late Freydoon Mansouri, we turn to neutrino physics and use a {\it modicum} of grand unification to relate quark and lepton mixing…
Correlated Hierarchy, Dirac Masses and Large Mixing Angles
Aseshkrishna Datta, Fu-Sin Ling, Pierre Ramond
We introduce a new parametrization of the MNS lepton mixing matrix which separates the hierarchical Grand Unified relations among quarks and leptons. We argue that one large angle…
Family Hierarchy from Symmetry Breaking
Fu-Sin Ling, Pierre Ramond
We investigate symmetry breaking patterns from replicated gauge groups which generate anomaly-free and family-dependent U(1) symmetries. We discuss the extent to which these symmet…
Family Hierarchy and Large Neutrino Mixings
Fu-Sin Ling, Pierre Ramond
The recent neutrino data seem to favor two large and one small mixing angles and a hierarchy of their squared mass differences. We discuss these within the context of hierarchical…
Testing Fundamental Ideas with 's
P. Ramond
Fundamental questions in neutrino physics are likely to be resolved by upcoming experiments. Neutrino masses require either new Higgs particles or sterile neutrinos. Their masses,…
Neutrino Masses and Mixing in Brane-World Theories
Andre Lukas, Pierre Ramond, Andrea Romanino +1
We present a comprehensive study of five-dimensional brane-world models for neutrino physics based on flat compactifications. Particular emphasis is put on the inclusion of bulk ma…
Solar neutrino oscillation from large extra dimensions
Andre Lukas, Pierre Ramond, Andrea Romanino +1
A plausible explanation for the existence of additional light sterile neutrinos is that they correspond to modulini, fermionic partners of moduli, which propagate in new large dime…