127 citations · 838 across the 16 of their papers we have counts for
16 papers · 1 filter
SO(10) theory of R-parity and neutrino mass
Charanjit S. Aulakh, Borut Bajc, Alejandra Melfo +2
We study the Higgs sector of a SO(10) grand unified theory which predicts exact conservation of R-parity at all scales and incorporates the see-saw mechanism. We find possible inte…
Seeking Gauge Bileptons in Linear Colliders
Paul H. Frampton, Andrija Rasin
A promising direction to find physics beyond the standard model is to look for violation of conservation. In particular the process with the excha…
Nonabelian Discrete Symmetries, Fermion Mass Textures and Large Neutrino Mixing
Paul H. Frampton, Andrija Rasin
Nonabelian discrete groups are an attractive tool to describe fermion masses and mixings. They have nonsinglet representations which seem particularly suitable for distinguishing t…
Intermediate Scales in Supersymmetric GUTs: the Survival of the Fittest
Charanjit S. Aulakh, Borut Bajc, Alejandra Melfo +2
We show that intermediate scales in supersymmetric grand unified theories may exist naturally. Their origin is traced to the violation of the survival principle: in supersymmetry i…
See-saw and Supersymmetry or Exact R-parity
Charanjit S. Aulakh, Alejandra Melfo, Andrija Rasin +1
We show how the renormalizable see-saw mechanism in the context of supersymmetry and spontaneously broken B-L symmetry implies exact R-parity at all energies. We argue that supersy…
Unification with Enlarged Kaluza-Klein Dimensions
Paul H. Frampton, Andrija Rasin
In minimal theories with extra spatial dimensions at scales mu_0 much lower than the conventional GUT scale, unification can give too-large predictions for alpha_3(M_Z) given alpha…
Hierarchical Quark Mass Matrices
Andrija Rasin
I define a set of conditions that the most general hierarchical Yukawa mass matrices have to satisfy so that the leading rotations in the diagonalization matrix are a pair of (2,3)…
Supersymmetry and Large Scale Left-Right Symmetry
Charanjit S. Aulakh, Alejandra Melfo, Andrija Rasin +1
We show that the low energy limit of the minimal supersymmetric Left-Right models is the supersymmetric standard model with an exact R-parity. The theory predicts a number of light…
Diagonalization of Quark Mass Matrices and the Cabibbo-Kobayashi-Maskawa Matrix
Andrija Rasin
I discuss some general aspects of diagonalizing the quark mass matrices and list all possible parametrizations of the Cabibbo-Kobayashi-Maskawa matrix (CKM) in terms of three rotat…
P, C and Strong CP in Left-Right Supersymmetric Models
Rabindra N. Mohapatra, Andrija Rasin, Goran Senjanovic
We systematically study the connection between P, C and strong CP in the context of both non-supersymmetric and supersymmetric left-right theories. We find that the solution to the…
Large Top Quark Yukawa Coupling and Horizontal Symmetries
Andrija Rasin
We consider the maximal U(3) horizontal scheme as a handle on fermion masses and mixings. In particular, we attempt to explain the large top Yukawa coupling and the masses and mixi…
A Supersymmetric Solution to CP Problems
Rabindra N. Mohapatra, Andrija Rasin
We analyze the minimal supersymmetric left-right model with non-re\-nor\-malizable interactions induced by higher scale physics and study its {\it CP} violating properties. We show…
Simple supersymmetric solution to the strong CP problem
Rabindra N. Mohapatra, Andrija Rasin
It is shown that the minimal supersymmetric left-right model can provide a natural solution to the strong {\it CP} problem without the need for an axion, nor any additional symmetr…
CP violation in multi-Higgs supersymmetric models
Manuel Masip, Andrija Rasin
We consider supersymmetric extensions of the standard model with two pairs of Higgs doublets. We study the possibility of spontaneous violation in these scenarios and present…
Many Higgs Doublet Supersymmetric Model, Flavor Changing Interactions and Spontaneous CP Violation
Andrija Rasin
I study many higgs doublet supersymmetric model with spontaneous CP violation. The damaging flavor changing interactions and large CP violation are brought under control simultaneo…
Spontaneous CP violation in supersymmetric models with four higgs doublets
Manuel Masip, Andrija Rasin
We consider supersymmetric extensions of the standard model with two pairs of Higgs doublets. We study the possibility that CP violation is generated spontaneously in the scalar se…