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and dibaryons in SU(3) chiral quark model
The binding energy of the six quark system with strangeness s=-3 is
investigated under the chiral SU(3) constituent quark model in the framework of
. The calculations of the single channel with spin S=2 and the
single channel with spin S=3 are performed. The results show
that both systems could be dibaryons and the interaction induced by the chiral
field plays a very important role on forming bound states in the systems
considered.
The phase shifts and scattering lengths in corresponding channels are also
given.Comment: LaTex file with 5 figure
Superfluidity of hyperons in neutron stars
We study the superfluidity of hyperons in neutron star
matter and neutron stars. We use the relativistic mean field (RMF) theory to
calculate the properties of neutron star matter. In the RMF approach, the
meson-hyperon couplings are constrained by reasonable hyperon potentials that
include the updated information from recent developments in hypernuclear
physics. To examine the pairing gap of hyperons, we employ
several interactions based on the Nijmegen models and used in
double- hypernuclei studies. It is found that the maximal pairing gap
obtained is a few tenths of a MeV. The magnitude and the density region of the
pairing gap are dependent on the interaction and the treatment
of neutron star matter. We calculate neutron star properties and find that
whether the superfluidity of hyperons exists in the core of
neutron stars mainly depends on the interaction used.Comment: 22 pages, 2 Tables, 6 Figur
Transient Dynamics and Thermal Stress for Nuclear Rocket Heat-exchanger
Transient dynamics and thermal stresses in nuclear rocket heat exchange
Distributed parameter type of control for a bilinear system
Optimal control laws for bilinear system in distributed parameter model - analytical determinatio
The control of absorption cross-section for a nuclear rocket
Control of absorption cross section of nuclear rocket with distributed parameter kinetics using two optimization procedure
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