1,280 research outputs found
Beyond the Standard Model
Six major frameworks have emerged attempting to describe particle physics
beyond the Standard Model. Despite their different theoretical genera, these
frameworks have a number of common phenomenological features and problems.
While it will be possible (and desirable) to conduct model-independent searches
for new physics at the LHC, it is equally important to develop robust methods
to discriminate between BSM 'look-alikes'.Comment: 10 pages, 5 figures, Lectures given at the 2009 European School of
High-Energy Physics, Bautzen, Germany, 14-27 Jun 200
The Standard Model: Alchemy and Astrology
An brief unconventional review of Standard Model physics, containing no
plots.Comment: 12 pages, 0 figures, review talk from "Physics at LHC", Krakow, 3-8
July 200
Moriond Electroweak 2006: Theory Summary
A concise look at the big picture of particle physics, including the status
of the Standard Model, neutrinos, supersymmetry, extra dimensions and
cosmology. Based upon the theoretical summary presented at the XLIst Rencontres
de Moriond on Electroweak Interactions and Unified Theories, La Thuile, 11-18
March 2006.Comment: 12 pages, 5 figure
New and Improved Superstring Phenomenology
Recent developments in string theory have important implications for
cosmology. Topics discussed here are inflation, the cosmological constant,
smoothing of cosmological singularities, and dark matter from parallel
universes. Talk presented at the International Workshop on Particle Physics and
the Early Universe (COSMO-98), 15-20 Nov, Asilomar, Monterey, CA.Comment: 9 page
Coupling spans of the Higgs-like boson
Using the LHC and Tevatron data, we set upper and lower limits on the total
width of the Higgs-like boson. The upper limit is based on the well-motivated
assumption that the Higgs coupling to a W or Z pair is not much larger than in
the Standard Model. These width limits allow us to convert the rate
measurements into ranges for the Higgs couplings to various particles. A
corollary of the upper limit on the total width is an upper limit on the
branching fraction of exotic Higgs decays. Currently, this limit is 47% at the
95% CL if the electroweak symmetry is broken only by doublets.Comment: 18 pages, 2 figures; v2: Minor clarifications, references adde
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