16,764 research outputs found
Multi-nucleon transfer in and in stochastic mean-field approach
The multi-nucleon exchange mechanism in
and collisions is analyzed in the
framework of the stochastic mean-field approach. The results of calculations
are compared with the TDRPA calculations and the recent data of . A good description of the data and a relatively
good agreement with the TDRPA calculations are found.Comment: 6 pages, 6 figure
The coupling constants g_{\rho\pi\gamma} and g_{\omega\pi\gamma} as derived from QCD sum rules}
We employ QCD sum rules to calculate the coupling constants
g and g by studying the three point
- and -correlation functions. Our results
for the decay widths and calculated using the obtained coupling constants are in good
agreement with the experimental values of these decay widths
The -vertex in light cone QCD sum rules
We investigate the -vertex and estimate the coupling
constant g in the framework of the light cone QCD sum
rules. We compare our result with the values of this coupling constant deduced
from a phenomenological analysis of decays.Comment: 5 pages, RevTex, 1 Figur
The - and -vertices in light cone QCD
We study - and -vertices in the framework
of the light cone QCD sum rules and we estimate the coupling constants g and g utilizing -mixing. We
compare our results with the previous estimations of these coupling constants
in the literature obtained from phenomenological considerations.Comment: 8 pages, RevTex, 2 figure
The -vertex in light cone QCD sum rules
We investigate the -vertex in the framework of light cone QCD sum
rules. We estimate the coupling constant g which is an essential
ingredient in the analysis of physical processes involving meson.
Our result is somewhat larger than the previous determinations of this coupling
constant.Comment: 8 pages, 1 figur
The decay and the role of -meson
We study the radiative decay within the
framework of a phenomenological approach in which the contributions of
-meson and -meson intermediate states and of the pion-loops are
considered. We conclude that the -meson amplitude provides the dominant
contribution.Comment: 12 pages, LATEX, 3 PS figure
Global analysis of solar neutrinos (assumed to be Majorana particles) together with the new KamLAND data
Assuming neutrinos are Majorana particles having non-zero transition magnetic
moments, a global analysis of solar neutrino data, together with the new
KamLAND data, is presented in the resonant spin flavor precession (RSFP)
framework. The allowed regions from solar data combined with new KamLAND data
are examined at 0.95 confidence level (CL). The electron antineutrino flux from
the Sun is calculated, and via the results obtained several limits are set for
muB.Comment: 13 pages, 6 figure
- …