13 papers
B -> K pi Puzzle and New Sources of CP Violation in Supersymmetry
S. Khalil, A. Masiero, H. Murayama
The difference between the CP asymmetries of the and decays has been recently confirmed with an evidence larger than 's. We discuss it as a…
Quark mass uncertainties revive KSVZ axion dark matter
M. R. Buckley, H. Murayama
The Kaplan-Manohar ambiguity in light quark masses allows for a larger uncertainty in the ratio of up to down quark masses than naive estimates from the chiral Lagrangian would ind…
Neutrino mixing and large CP violation in B physics
Darwin Chang, Antonio Masiero, Hitoshi Murayama
We show that in see-saw models of neutrino mass a la SUSY SO(10), the observed large mixing in atmospheric neutrinos naturally leads to large b-s transitions. If the associated new…
Not Even Decoupling Can Save Minimal Supersymmetric SU(5)
Hitoshi Murayama, Aaron Pierce
We make explicit the statement that Minimal Supersymmetric SU(5) has been excluded by the Super-Kamiokande search for the process . This exclusion is made b…
Can Supersymmetric Loops Correct the Fermion Mass Relations in SU(5)?
J. Lorenzo Diaz-Cruz, Hitoshi Murayama, Aaron Pierce
We investigate three different possibilities for improving the fermion mass relations that arise in grand unified theories (GUTs). Each scenario relies on supersymmetric loop effec…
Supersymmetric Framework for a Dynamical Fermion Mass Hierarchy
Nima Arkani-Hamed, Christopher D. Carone, Lawrence J. Hall +1
We propose a new framework for constructing supersymmetric theories of flavor, in which flavor symmetry breaking is triggered by the dynamical breakdown of supersymmetry at low ene…