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10 papers · 2 filters
The ppbar -> tbH^+/- Process at the Tevatron in HERWIG and PYTHIA Simulations
Johan Alwall, Catherine Biscarat, Stefano Moretti +2
Charged Higgs boson production in association with a top quark could be the first indication of the existence of Higgs particles. The Tevatron Run-II started data-taking in April 2…
Theoretical uncertainties on alpha_s from event-shape variables in e+e- annihilations
Roger W. L. Jones, Matthew Ford, Gavin P. Salam +2
The precision of measurements of the strong coupling constant using event-shape variables in e+e- annihilations is limited by theoretical systematic uncertainties. The uncertaintie…
Hybrid Inflation without Flat Directions and without Primordial Black Holes
K. Dimopoulos, M. Axenides
We investigate the possibility that the Universe may inflate due to moduli fields, corresponding to flat directions of supersymmetry, lifted by supergravity corrections. Using a hy…
Large Beyond-Leading-Order Effects in b -> s gamma in Supersymmetry with General Flavor Mixing
Ken-ichi Okumura, Leszek Roszkowski
We examine squark--gluino loop effects on the process in minimal supersymmetry with general flavor mixing in the squark sector. In the regime of heavy squarks and gluin…
Curvaton Dynamics
Konstantinos Dimopoulos, George Lazarides, David Lyth +1
In contrast to the inflaton's case, the curvature perturbations due to the curvaton field depend strongly on the evolution of the curvaton before its decay. We study in detail the…
Dark Matter And With Minimal Soft SUSY Breaking
R. Dermisek, S. Raby, L. Roszkowski +1
CMSSM boundary conditions are usually used when calculating cosmological dark matter densities. In this paper we calculate the cosmological density of dark matter in the MSSM using…