89 research outputs found
Update of the e^+e^-\to\pi^+\pi^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
The corrected cross section of the e^+e^-\to\pi^+\pi^- process measured in
the SND experiment at the VEPP-2M e^+e^- collider is presented. The update is
necessary due to a flaw in the e^+e^-\to\pi^+\pi^- and e^+e^-\to\mu^+\mu^-
Monte Carlo events generators used previously in data analysis.Comment: 10 pages,7 figure
Magnetic order in the Ising model with parallel dynamics
It is discussed how the equilibrium properties of the Ising model are
described by an Hamiltonian with an antiferromagnetic low temperature behavior
if only an heat bath dynamics, with the characteristics of a Probabilistic
Cellular Automaton, is assumed to determine the temporal evolution of the
system.Comment: 9 pages, 3 figure
Study of the process with SND detector at the VEPP-2M collider
In experiment with the SND detector at VEPP-2M collider the
cross section was measured in the energy range
=0.60--1.38 GeV with the integrated luminosity of 27.8 pb. The
measured cross section is well described by the vector meson dominance model
with contributions from the , , ,
resonances and agrees with results of previous
measurements. The decay probabilities \BR(\phi\to\eta\gamma),
\BR(\omega\to\eta\gamma) and \BR(\rho\to\eta\gamma) were measured with the
accuracies better than or comparable to the world averages.Comment: 13 pages, 6 figures, 5 table
Review of experimental results from SND detector
The review of experimental results obtained with SND detector at VEPP-2M
collider in the energy region -- 1.38 GeV is given.
The presented results include the following items: studies of the light vector
mesons radiative decays, OZI-rule and G-parity suppressed -meson rare
decays, -meson parameters measurements, studies of
process dynamics, and mesons rare
decays, and mesons conversion decays, and study of the
annihilation into hadrons.Comment: 12 pages and 6 figures. Talk given at the IX International Conference
on Hadron Spectroskopy, Protvino, Russia, August 25 - September 1, 200
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