Concept

Wilson loop

Related publications (43)

Gauge and gravitational anomalies in D=4 N=1 orientifolds

The cancellation of U(1)-gauge and U(1)-gravitational anomalies in certain D = 4 N = 1 type-IIB orientifolds is analyzed in detail, from a string theory point of view. We verify the proposal that these anomalies are cancelled by a Green-Schwarz mechanism i ...

1999

Supersymmetry-breaking loops from analytic continuation into superspace

Riccardo Rattazzi

We extend to all orders in perturbation theory a method to calculate supersymmetry-breaking effects by analytic continuation of the renormalization group into superspace. A central observation is that the renormalized gauge coupling can be extended to a re ...

1998

Upper Bound on Hot Dark-Matter Density from So(10) Yukawa Unification

Riccardo Rattazzi

We study low-energy consequences of supersymmetric SO(10) models with Yukawa unification h(t) = h(N) and h(b) = h(tau). We find that it is difficult to reproduce the observed m(b)/m(tau) ratio when the third-generation right-handed neutrino is at an interm ...

1994

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