502 research outputs found
L'attente inassouvie chez Marguerite Duras : «La théorie des besoins» dans Le Square
Illustrating SUSY breaking effects on various inflation mechanisms
We consider the supersymmetry breaking effects on typical inflation models
with different types of K\"ahler potential. The critical size of
supersymmetry-breaking scale, above which the flatness of the inflaton
potential is spoiled, drastically changes model by model. We present the
universal description of such effects in terms of a field-dependent scaling
factor by which gravity-mediated supersymmetry breaking terms are suppressed or
enhanced, based on the conformal supergravity framework. Such a description
would be useful when we estimate them in constructing supersymmetric models of
particle cosmology.Comment: 20pages, 3 figures, v2: a reference added, v3: Appendix B adde
One loop renormalization for the axial Ward-Takahashi identity in Domain-wall QCD
We calculate one-loop correction to the axial Ward-Takahashi identity given
by Furman and Shamir in domain-wall QCD. It is shown perturbatively that the
renormalized axial Ward-Takahashi identity is satisfied without fine tuning and
the ``conserved'' axial current receives no renormalization, giving .
This fact will simplify the calculation of the pion decay constant in numerical
simulations since the decay constant defined by this current needs no lattice
renormalization factor.Comment: 16 pages, 3 axodraw.sty figure
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