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Constraints on Neutralino masses and mixings from Cosmology and Collider Physics
(2007)
Bounds on cross section measurements of chargino pair production at LEP yield a bound on the chargino mass. If the GUT relation $M_1 = 5/3 \tw[2] M_2$ is assumed, then the lightest neutralino must be heavier than $\approx ...
Local Gauge Coupling Running in Supersymmetric Gauge Theories on Orbifolds
(2007)
By extending Feynman's path integral calculus to fields which respect orbifold boundary conditions we provide a straightforward and convenient framework for loop calculations on orbifolds. We take advantage of this general ...