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Supersymmetric relics from the big bang
Abstract We consider the cosmological constraints on supersymmetric theories with a new, stable particle. Circumstantial evidence points to a neutral gauge/Higgs fermion as the best candidate forExpand
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Geological Isotope Anomalies as Signatures of Nearby Supernovae
Nearby supernova explosions may cause geological isotope anomalies via the direct deposition of debris or by cosmic-ray spallation in the earth's atmosphere. We estimate the mass of materialExpand
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The universal one-loop effective action
A bstractWe present the universal one-loop effective action for all operators of dimension up to six obtained by integrating out massive, non-degenerate multiplets. Our general expression may beExpand
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Search for violations of quantum mechanics
The treatment of quantum effects in gravitational fields indicates that pure states may evolve into mixed states, and Hawking has proposed modifications of the axioms of field theory whichExpand
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Starobinsky-like inflationary models as avatars of no-scale supergravity
Models of cosmological inflation resembling the Starobinsky R+R2 model emerge naturally among the effective potentials derived from no-scale SU(N,1)/SU(N) × U(1) supergravity when N > 1. We displayExpand
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Search for Supersymmetry in Toponium Decays
Although cosmology and unification suggest that the mass of the gluino is larger than about 14 GeV, in many theories of broken supersymmetry the photino γ, gluino g and one of the spin-zero partnersExpand
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Distance Measurement and Wave Dispersion in a Liouville-String Approach to Quantum Gravity
Within a Liouville approach to noncritical string theory, we discuss space–time foam effects on the propagation of low-energy particles. We find an induced frequency-dependent dispersion in theExpand
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Exploration of the MSSM with non-universal Higgs masses
We explore the parameter space of the minimal supersymmetric extension of the Standard Model (MSSM), allowing the soft supersymmetry-breaking masses of the Higgs multiplets, m1,2, to be non-universalExpand
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Deep-Ocean Crusts as Telescopes: Using Live Radioisotopes to Probe Supernova Nucleosynthesis
Live 60Fe has recently been detected in a deep-ocean ferromanganese crust, isolated in layers dating from about 3 Myr ago. Since 60Fe has a mean life of 2.2 Myr, a near-Earth supernova is the onlyExpand
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WMAP-compliant benchmark surfaces for MSSM Higgs bosons
We explore `benchmark surfaces' suitable for studying the phenomenology of Higgs bosons in the minimal supersymmetric extension of the Standard Model (MSSM), which are chosen so that theExpand
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