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Ernest Ma
Professor of Physics
Ph.D. 1970, University of California, Irvine
Theoretical High Energy Physics: model building and electroweak
phenomenology beyond the standard model
E-mail: ernest.ma@ucr.edu
Phone: (951) 827-5340
Fax: (951) 827-4529
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There exists now a very successful standard model of the fundamental
constituents of matter and the forces which act between them. Nevertheless,
many basic issues are yet to be explored. The theoretical particle
physics research at UCR is concerned with the extension of our knowledge
at this exciting frontier. Some current topics on which we are working
include possible extensions of the standard model and their experimental
signatures, the unification of all or some of the fundamental forces, the
origin of mass, the possible violation of fundamental conservation laws,
and the fermion and gauge boson masses from the dynamics of four-fermi
interaction models. Phenomenological studies and model building for
hadron-hadron and electron-positron scattering at high energies are an
important component of this program. In particular, there is a close
collaboration with the experimental group in testing theoretical predictions
on production of weak vector bosons, heavy quarks, and super-symmetric
particles.
Another exciting area which is currently under rapid development concerns
the interplay between particle physics and astrophysics. Using the methods
of both these subjects, phenomena not accessible using Earth-bound
experiments can be studied. Presently, we are concerned with understanding
the properties of neutrinos using this approach.
Selected Publications
J. Perez Muniain and J. Wudka, "Anomalous commutator corrections to sum rules", Phys. Rev. D 52, 5194 (1995).
D. Piriz, M. Roy and J. Wudka, "Neutrino oscillations in strong gravitational
fields", Phys. Rev. D 54, 1587 (1996).
J. Wudka, "The Meaning of Anomalous Couplings", to appear in the proceedings
of the 1996 DPF/DPB Summer Study on New Directions for High-Energy Physics
(Snowmass 96) (5 p.); Sept. 4, 1996.
J. Wudka, "CP violation through effective Lagrangians," to appear in the
proceedings of XXXI Recontres de Moriond. UCRHEP-T172 (7 p.); June 20,
1996.
E. Ma and P. Roy, "Model of Four Light Neutrinos in the light of All
Present Data," Phys. Rev. D 52, R4780 (1995).
E. Ma, "Increasing Rb and Decreasing Rc with New Heavy Quarks," Phys. Rev.
D 53, R2276 (1996).
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