6,870 research outputs found
A Missing Partner Model With 24-plet Breaking SU(5)
We give a missing partner model using 24-plet instead of 75-plet to break the
SU(5) symmetry. Fermion masses and mixing are generated through the
Georgi-Jarlskog mechanism. The model is constructed at renormalizable level at
very high energy. The perturbative region is extended for the unification gauge
coupling. Constrains by proton decay is also satisfied.Comment: 18 pages, 6 figure
Gravitational Effects of Rotating Bodies
We study two type effects of gravitational field on mechanical gyroscopes
(i.e. rotating extended bodies). The first depends on special relativity and
equivalence principle. The second is related to the coupling (i.e. a new force)
between the spins of mechanical gyroscopes, which would violate the equivalent
principle. In order to give a theoretical prediction to the second we suggest a
spin-spin coupling model for two mechanical gyroscopes. An upper limit on the
coupling strength is then determined by using the observed perihelion
precession of the planet's orbits in solar system. We also give predictions
violating the equivalence principle for free-fall gyroscopes .Comment: LaTex, 6 page
- …