184 research outputs found
Top Quark Spin Correlations - Theory
The theoretical aspects of spin correlations in top quark pair production are
briefly reviewed.Comment: 4 pages, 3 figures, proceedings for TOP201
The Effective in Matter
In this paper we generalize the concept of an effective for
disappearance experiments, which has been extensively used
by the short baseline reactor experiments, to include the effects of
propagation through matter for longer baseline
disappearance experiments. This generalization is a trivial, linear combination
of the neutrino mass squared eigenvalues in matter and thus is not a simple
extension of the usually vacuum expression, although, as it must, it reduces to
the correct expression in the vacuum limit. We also demonstrated that the
effective in matter is very useful conceptually and
numerically for understanding the form of the neutrino mass squared eigenstates
in matter and hence for calculating the matter oscillation probabilities.
Finally we analytically estimate the precision of this two-flavor approach and
numerically verify that it is precise at the sub-percent level.Comment: 9 pages, 6 figures, 1 table, comments welcom
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