13,968 research outputs found
Top properties in events at CMS (includes mass)
Selected results from the following topics are presented: Measurements of
several top quark properties are obtained from the CMS data collected in 2011
at a center-of-mass energy of 7 TeV. The results include measurements of the
top quark mass, the W helicity in top decays, the top quark charge, and of the
spin correlation and the search for anomalous couplings.Comment: 5 pages, 10 figures. Presented at HCP 2012 Hadron Collider Physics
Symposium 201
On discrete integrable equations of higher order
We study 2D discrete integrable equations of order 1 with respect to one
independent variable and with respect to another one. A generalization of
the multidimensional consistency property is proposed for this type of
equations. The examples are related to the B\"acklund--Darboux transformations
for the lattice equations of Bogoyavlensky type.Comment: 20 pages, 2 figure
Some incidence theorems and integrable discrete equations
Several incidence theorems of planar projective geometry are considered. It
is demonstrated that generalizations of Pascal theorem due to M\"obius give
rise to double cross-ratio equation and Hietarinta equation. The construction
corresponding to the double cross-ratio equation is a reduction to a conic
section of some planar configuration . This configuration provides
a correct definition of the multidimensional quadrilateral lattices on the
plane.Comment: 12 p, 7 fi
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