59 research outputs found
Symmetry Problems in Low Energy Physics
Some recent experimental and theoretical work on 1) charge symmetry-breaking,
2) parity non-conservation, and 3) searches for breaking of time reversal
invariance are reviewed. The examples illustrate the uses of symmetry to learn
about underlying dynamics and/or structure.Comment: 15 pages, tex, figures available from
[email protected] Talk presented at WEIN'9
Neutrino Properties, Cosmology
Review of neutrino properties; double beta decay; very high energy neutrinos;
leptogenesisComment: 10 pages, 3 figures; conference tal
Determination of flavor asymmetry for by the Drell-Yan process
Flavor asymmetries for the valence and sea quarks of the can
be obtained from Drell-Yan experiments using charged hyperon beams on proton
and deuteron targets. A large, measurable difference in sea quark asymmetries
is predicted between SU(3) and pseudoscalar meson models. The latter predict
that in , , whereas the former predict
. Estimates of valence quark asymmetries based on
quark models also show large deviations from SU(3) predictions, which should be
measurable.Comment: 15 pages, latex. Figures available from [email protected].
To be published in Phys. Lett.
- …