U(2) flavor physics without U(2) symmetry Page: 1 of 7
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The Thomas Jefferson National Accelerator Facility
Theory Group Preprint Series
Additional copies are available from the authors.
The Southeastern Universities Research Association (SURA) operates the
Thomas Jefferson National Accelerator Facility for the United States
Department of Energy under contract DR-AC05-84ER40150.
U(2) Flavor Physics without U(2) Symmetry
Alfredo Aranda'*, Christopher D. Caroneet, and Richard F. Lebedet
aNuclear and Particle Theory Group, Department of Physics, College of William and Mary,
Williamsburg, VA 23187-8795
bJefferson Lab, 12000 Jefferson Avenue, Newport News, VA 22606
We present a model of fermion masses based on a minimal, non-Abelian
discrete symmetry that reproduces the Yukawa matrices usually associated
with U(2) theories of flavor. Mass and mixing angle relations that follow
from the simple form of the quark and charged lepton Yukawa textures are
therefore common to both theories. We show that the differing representation
structure of our horizontal symmetry allows for new solutions to the solar and
atmospheric neutrino problems that do not involve modification of the original
charged fermion Yukawa textures, or the introduction of sterile neutrinos.
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Aranda, A.; Carone, C.D. & Lebed, R.F. U(2) flavor physics without U(2) symmetry, article, October 1, 1999; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc710769/m1/1/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.