14,791 research outputs found
The biosynthesis of the flavin moiety of dihydroorotic dehydrogenase of zymobacterium oroticum
Thesis (M.A.)--Boston Universit
A Single Source for All Flavor Violation
In a model proposed in 2012, all flavor mixing has a single source and is
governed by a single "master matrix." This model was shown to give several
predictions for quark and lepton masses and mixing angles and for mixing angles
within SU(5) multiplets that are observable in proton decay. Here it is shown
that the same master matrix controls the flavor-changing processes mediated by
a singlet scalar that exists in the model, giving predictions for tau to mu +
gamma, tau to e + gamma, and mu to e + gamma.Comment: 11 pages, no figure
Cogeneration of Dark Matter and Baryons by Non-Standard-Model Sphalerons in Unified Models
Sphalerons of a new gauge interaction can convert a primordial asymmetry in B
or L into a dark matter asymmetry. From the equilibrium conditions for the
sphalerons of both the electroweak and the new interactions, one can compute
the ratios of B, L, and X, where X is the dark matter number, thus determining
the mass of the dark matter particle fairly precisely. Such a scenario can
arise naturally in the context of unification with larger groups. An
illustrative model embeddable in is described
as well as an equally simple model based on SU(7).Comment: 13 pages. Revised introduction and references, changed titl
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