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19912026
Showing 2002 · hep-phShow all

10 papers · 2 filters

hep-ph2002

String Theory, Unification and Supersymmetry

Michael Dine

One cannot yet point to any firm string prediction. While many approximate string ground states are known with interesting properties, we do not have any argument that one or anoth…

hep-ph2002★ 46 cited

Time Variations in the Scale of Grand Unification

Michael Dine, Yosef Nir, Guy Raz +1

We study the consequences of time variations in the scale of grand unification, , when the Planck scale and the value of the unified coupling at the Planck scale are held fixe…

hep-ph2002★ 91 cited

Supersymmetry, Axions and Cosmology

T. Banks, M. Dine, M. Graesser

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…

hep-ph2002★ 475 cited

Higgs Boson Theory and Phenomenology

Marcela Carena, Howard E. Haber

Precision electroweak data presently favors a weakly-coupled Higgs sector as the mechanism responsible for electroweak symmetry breaking. Low-energy supersymmetry provides a natura…

hep-ph2002★ 898 cited

The CP-conserving two-Higgs-doublet model: the approach to the decoupling limit

John F. Gunion, Howard E. Haber

A CP-even neutral Higgs boson with Standard-Model-like couplings may be the lightest scalar of a two-Higgs-doublet model. We study the decoupling limit of the most general CP-conse…

hep-ph2002★ 17 cited

Product Groups, Discrete Symmetries, and Grand Unification

Michael Dine, Yosef Nir, Yael Shadmi

We study grand unified theories based on an SU(5)xSU(5) gauge group in which the GUT scale, M_{GUT}, is the VEV of an exact or approximate modulus, and in which fast proton decay i…

hep-ph2002★ 5 cited

Executive Summary of the Snowmass 2001 Working Group (P1) ``Electroweak Symmetry Breaking''

Marcela Carena, David W. Gerdes, Howard E. Haber +2

In this summary report of the 2001 Snowmass Electroweak Symmetry Breaking Working Group, the main candidates for theories of electroweak symmetry breaking are surveyed, and the cri…

hep-ph2002★ 676 cited

The Snowmass Points and Slopes: Benchmarks for SUSY Searches

B. C. Allanach, M. Battaglia, G. A. Blair +32

The ``Snowmass Points and Slopes'' (SPS) are a set of benchmark points and parameter lines in the MSSM parameter space corresponding to different scenarios in the search for Supers…

hep-ph2002

Report of the Subgroup on Alternative Models and New Ideas

M. Chertok, K. Dienes, S. Godfrey +10

We summarize some of the work done by the P3 subgroup on Alternative Models and New Ideas. The working group covered a broad range of topics including a constrained Standard Model…

hep-ph2002★ 67 cited

Time-Varying alpha and Particle Physics

T. Banks, M. Dine, M. R. Douglas

We argue that models in which an observable variation of the fine structure constant is explained by motion of a cosmic scalar field, are not stable under renormalization, and requ…