597 research outputs found
Construction of Nth-order rogue wave solutions for Hirota equation by means of bilinear method
In this work, we focus on the construction of Nth-rouge wave solutions for
the Hirota equation by utilizing the bilinear method. The formula can be
represented in terms of determinants. In addition, some interesting dynamic
patterns of rogue waves are exhibited.Comment: 10 pages, 2 figure
Nucleon-antinucleon Interaction from the Modified Skyrme Model
We calculate the static nucleon-antinucleon interaction potential from the
modified Skyrme model with additional term using the product
ansatz. The static properties of single baryon are improved in the modified
Skyrme model. State mixing is taken into account by perturbation theory, which
substantially increases the strength of the central attraction. We obtain a
long and mid range potential which is in qualitative agreement with some
phenomenological potentials.Comment: 21 pages, 7 figur
Exponential Attractor for Coupled Ginzburg-Landau Equations Describing Bose-Einstein Condensates and Nonlinear Optical Waveguides and Cavities
The existence of the exponential attractors for coupled Ginzburg-Landau equations describing Bose-Einstein condensates and nonlinear optical waveguides and cavities with periodic initial boundary is obtained by showing Lipschitz continuity and the squeezing property
Lepton flavor violating and conversion in unparticle physics
We have studied lepton flavor violation processes and
conversion in nuclei induced by unparticle. Both and conversion rate strongly
depend on the scale dimension and the unparticle coupling
(K=V, A, S, P). Present experimental upper bounds on
, and put stringent constraints on the parameters of unaprticle physics. The
scale dimensions around 2 are favored for the unparticle scale
of and the unparticle coupling of
. is proportional to
for the pure vector and scalar couplings between
unparticle and SM fermions, this peculiar atomatic number dependence can be
used to distinguish unparticle from other theoretical models.Comment: 16 pages, 5 figure
Signals of Unparticles in Low Energy Parity Violation and NuTeV Experiment
We have studied the possible signals of unparticle in atomic parity
violation(APV) along an isotope chain and in the NuTeV experiment. The effects
of unparticle physics could be observed in APV, if the uncertainty in relative
neutron/proton radius shift is less than a few
times by measuring the parity violating electron scattering. The
constraints imposed by NuTeV experiment on unparticle physics are discussed in
detail. If the NuTeV results are confirmed by future experiments, we suggest
that unparticle could account for a part of NuTeV anomaly. There exist certain
regions for the unparticle parameters (, ,
and ), where the NuTeV discrepancy could be
completely explained by unparticle effects and the strange quark asymmetry,
even with or without the contributions from the isoscalarity violation etc. It
is remarkable that these parameter regions are consistent with the constraints
from Comment: 19 pages, 7 figure
Diquark in Nona-quark States
We study the nonaquark states and which are reported
by KEK-PS (Phys.Lett. B597 (2004) 236; nucl-ex/0310018) by means of the quark
model with diquark correlation. The nonaquark states form
SU(3) multiplets.
The flavor wave functions of all the nonaquark states are constructed through
the standard tensor technique. The mass spectrum is studied by using
Gell-Mann-Okubo mass formula. Some nonaquark mass sum rules are obtained. We
further investigate the decay of and under the
assumption of "fall-apart" mechanism. It has been found that the main decay
mode is rather than which is consistent with
experiment. Also we have uniquely determine the flavor wave function of
which belong to -plet with the quantum number
. Whereas the exotic states can belong to either
-plet or -plet. In the exact limit, both and
belong to -plet with negative parity. We predict that its flavor
structure can be determined by measuring the branch fractions of its decay
channels. The experiments to check this prediction are expected.Comment: 23 pages, 8 figures, to appear in Phys. Rev.
Linear stability analysis and homoclinic orbit for a generalized non-linear heat transfer
This paper studies the linear stability and dynamic structure for a generalized non-linear heat equation, and obtains novel analytic solutions such as homoclinc orbit and breather solitary solutions for the first time based on Hirota method
- …