منابع مشابه
Supersymmetry, Axions and Cosmology
Various authors have noted that in particular models, the upper bound on the axion decay constant may not hold. We point out that within supersymmetry, this is a generic issue. For large decay constants, the cosmological problems associated with the axion’s scalar partner are far more severe than those of the axion. We survey a variety of models, both for the axion multiplet and for cosmology, ...
متن کاملSupersymmetry and Cosmology
Cosmology now provides unambiguous, quantitative evidence for new particle physics. I discuss the implications of cosmology for supersymmetry and vice versa. Topics include: motivations for supersymmetry; supersymmetry breaking; dark energy; freeze out and WIMPs; neutralino dark matter; cosmologically preferred regions of minimal supergravity; direct and indirect detection of neutralinos; the D...
متن کاملIsospectral Supersymmetry in Quantum Cosmology
Using as an illustrative example the p=1 operator-ordered Wheeler-DeWitt equation for a closed, radiation-filled Friedmann-Robertson-Walker universe, we introduce and discuss the isospectral supersymmetric issue in quantum cosmology.
متن کاملLocal Supersymmetry in One-loop Quantum Cosmology
The contribution of physical degrees of freedom to the one-loop amplitudes of Euclidean supergravity is here evaluated in the case of flat Euclidean backgrounds bounded by a three-sphere, recently considered in perturbative quantum cosmology. In Euclidean supergravity, the spin-32 potential has the pair of independent spatial components ( ψ i , ψ̃ A′ i ) . Massless gravitinos are here subject to...
متن کاملLimits on Split Supersymmetry from Gluino Cosmology
An upper limit on the masses of scalar superpartners in split supersymmetry is found by considering cosmological constraints on long-lived gluinos. Over most of parameter space, the most stringent constraint comes from big bang nucleosynthesis. A TeV mass gluino must have a lifetime of less than 100 seconds to avoid altering the abundances of D and Li. This sets an upper limit on the supersymme...
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ژورنال
عنوان ژورنال: Annals of Physics
سال: 2005
ISSN: 0003-4916
DOI: 10.1016/j.aop.2004.09.014