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research article
Universal Seesaw and Radiative Quark Mass Hierarchy
1992
A new approach to the fermion mass problem is suggested. The mass hierarchy is first radiatively generated in a sector of heavy isosinglet fermions and then projected to the visible ones by means of a universal seesaw. In this way flavour-changing phenomena are naturally suppressed. A quantitatively correct picture of quark masses and mixing is obtained. In particular, in contrast to previous approaches, the correct value of the Cabibbo angle can be accommodated without troubles for the perturbation expansion. By fitting the values of the masses of the five known quarks, we find that the natural value of m(t) is in the 100 GeV range.
Type
research article
Authors
Publication date
1992
Published in
Volume
279
Issue
1-2
Start page
124
End page
130
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 24, 2010
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