190,738 research outputs found
Photon Structure and gamma-gamma Physics
The LEP experiments are making real progress in understanding the structure
of the photon, though the results do not yet give such clear demonstrations of
QCD in action as the proton structure has done. Other new results are reported,
including QED related effects and , from LEP and
from CLEO II.Comment: 16 pages, 15 figures, Contribution to "Physics in Collision",
Frascati, June 18-19, 199
The Higgs and Neutralino Sectors of the Next-to-Minimal Supersymmetric Standard Model
The Next-to-Minimal Supersymmetric Standard Model (NMSSM) includes a Higgs
iso-singlet superfield in addition to the two Higgs doublet superfields of the
minimal supersymmetric extension. The Higgs sector and neutralino sectors of
this model are examined within the context of a future linear collider.Comment: 5 pages, talk presented at LCWS04, International Conference on Linear
Colliders, 19-23 April 2004, Paris, France, to appear in the proceeding
The CMB - Contemporary Measurements and Cosmology
Since the discovery of the Cosmic Microwave Background (CMB) in 1965,
characterization of the CMB anisotropy angular power spectrum has become
somewhat of a holy grail for experimental cosmology. Because CMB anisotropy
measurements are difficult, the full potential of the CMB is only now being
realized. Improvements in experimental techniques and detector technology have
yielded an explosion of progress in the past couple of years resulting in the
ability to use measurements of the CMB to place meaningful constraints on
cosmological parameters. In this review, I discuss the theory behind the CMB
but focus primarily on the experiments, reviewing briefly the history of CMB
anisotropy measurements and focusing on the recent experiments that have
revolutionized this field. Results from these modern experiments are reviewed
and the cosmological implications discussed. I conclude with brief comments
about the future of CMB physics.Comment: 18 pages including 5 ps figures. GR16 proceedings to appear in World
Scientifi
Two Photon Physics at LEP2; including data Monte-Carlo comparison
A partisan review of some of the most important channels
accessible at LEP 2, with special stress on the measurement of the photon
structure function and on associated problems with Monte Carlo
modelling.Comment: 7 pages including 5 figures. Invited talk given at the LEP2
Phenomenology Workshop, Oxford, U.K., 14 April 199
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