85 research outputs found
Baryons in the Field Correlator Method
The ground and -wave excited states of , and baryons are
studied in the framework of the field correlator method using the running
strong coupling constant in the Coulomb-like part of the three-quark potential.
The string correction for the confinement potential of the orbitally excited
baryons, which is the leading contribution of the proper inertia of the
rotating strings, is estimated.Comment: 6 pages, 2 figures. Talk given at APS April Meeting, Denver,
Colorado, May 2-5, 2009 and at the Tenth Conference on the Intersections of
Particle and Nuclear Physics (CIPANP 2009), San Diego, California, May 26-31,
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Emission cross sections for energetic O()-N collisions
We report measurements of excitation functions for the ON
process with the incident beam of keV O in the ground
O and metastable O and O states. The
measurements are performed with the sufficiently high energy resolution of
0.001 eV, which allows to distinguish the excitation channels. The excitation
cross section induced by incident ions in the metastable state O
is much larger than that for the ground O. The excitation cross
section of N ion for (0,0), (0,1) and (1,2) bands system is measured
and the ratio of intensities for these bands is established as It is
shown that the cross sections for the Nions excitations in the
dissociative charge exchange processes increase with the increase of the
incident ion energy. The energy dependence of the excitation cross section of
the band (0,0) nm of the first negative system of the
N and degree of polarization of radiation in ON
collision are measured for the first time. An influence of an admixture of the
ion metastable state on a degree of polarization is revealed. It is
demonstrated that for ON collision system the degree of
polarization by metastable O() ions is less compared to those that
are in the ground O() state and the sign of polarization degree of
excited molecular ions does not change.Comment: 15 pages, 8 Figure
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