搜索结果: 1-15 共查到“原子核物理学 symmetry”相关记录18条 . 查询时间(0.141 秒)
Chiral symmetry breaking and the spin content of the rho and rho' mesons
Chiral symmetry breaking rho rho' mesons
2011/7/21
Using interpolators with different SU(2)_L \times SU(2)_R transformation properties we study the chiral symmetry and spin contents of the rho- and rho'-mesons in lattice simulations with dynamical qua...
Deriving the existence of $B\bar{B}^*$ bound states from the X(3872) and Heavy Quark Symmetry
Deriving the existence Heavy Quark Symmetry
2011/7/21
We discuss the possibility and the description of bound states between $B$ and $\bar{B}^*$ mesons. We argue that the existence of such a bound state can be deduced from (i) the weakly bound X(3872) st...
Momentum dependence of the symmetry potential and its influence on nuclear reactions
LQMD model ass splitting omentum-dependent potential
2011/7/20
A Skyrme-type momentum-dependent nucleon-nucleon force distinguishing isospin effect is parameterized and further implemented in the Lanzhou Quantum Molecular Dynamics (LQMD) model for the first time,...
Alpha-Cluster Model, Charge Symmetry of Nuclear Force and Single Particle Bound State Potential in Symmetrical Nuclei
Alpha-Cluster Model Nuclear Force Bound State Potential
2011/7/20
A phenomenological alpha-cluster model based on the charge symmetry of nuclear force allows one to estimate the last proton position radius (LPPR) in a symmetrical nucleus. The values of LPPR obtained...
Embedded Representations and Quasi-Dynamical Symmetry
Embedded Representations Quasi-Dynamical Symmetry
2011/7/20
This presentation explains why models with a dynamical symmetry often work extraordinarily well even in the presence of large symmetry breaking interactions. A model may be a caricature of a more real...
Subtle Is The Manifestation Of Chiral Symmetry In Nuclei And Dense Nuclear Matter
Subtle Manifestation Of Chiral Symmetry In Nuclei Dense Nuclear Matter
2011/1/6
The history of how chiral symmetry has entered in nuclear physics, in which Gerry Brown
and I have participated from 1970 up to today, is described from my personal viewpoint. The
route of developme...
Subtle Is The Manifestation Of Chiral Symmetry In Nuclei And Dense Nuclear Matter
Subtle The Manifestation Chiral Symmetry Nuclei Dense Nuclear Matter
2011/1/4
The history of how chiral symmetry has entered in nuclear physics, in which Gerry Brown and I have participated from 1970 up to today, is described from my personal viewpoint. The route of development...
Scalar field in nuclear matter: the roles of spontaneous chiral symmetry breaking and nucleon structure
nuclear matter roles of spontaneous chiral symmetry breaking nucleon structure
2011/1/6
Chiral theories with spontaneous symmetry breaking such as the Nambu-Jona-Lasinio (NJL)
model lead to the existence of a scalar mode. We present in a detailed manner how the corresponding low momentu...
Nuclear symmetry energy at subnormal densities from measured nuclear masses
Nuclear symmetry energy subnormal densities measured nuclear masses
2011/1/6
The symmetry energy coefficients for nuclei with mass number A = 20 ∼ 250 are extracted
from more than 2000 measured nuclear masses. With the semi-empirical connection between the
symmetry ene...
These are personal recollections of how Gerry Brown’s work and thinking influenced the development of the chiral effective Lagrangian based theory of nuclear forces.
Flavor unification, dark matter, proton decay and other observable predictions with low-scale $S_4$ symmetry
Flavor symmetries Grand unification Proton decay Intermediate symmetry
2011/1/10
We show how gauge coupling unification is successfully implemented through non- supersym-
metric GU ×Gf (GU = SU(5), SO(10); Gf = S4 , SO(3)f , SU(3)f ) at the grand unification
scale MU > 1015 GeV ...
Identical interactions found in the three families of quarks and leptons suggest the presence of a horizontal symmetry. We discuss how such a symmetry can be tested by measuring the decay rates of Hig...
Probing Nuclear Symmetry Energy with Giant Dipole Resonances in Finite Nuclei
symmetry energy dipole resonance Pygmy resonance
2009/11/18
The relationship between the centroid energies of the isovector giant dipole resonance of finite nuclei and the symmetry energy has been studied. It is found the excitation energies of the dipole reso...
Level Crossing of N*(1535)hole and η Modes and Partial Restoration of Chiral Symmetry in ηmesic Nuclei
A etamesic nuclei N*(1535) in medium partial restoration of chiral symmetry
2009/10/29
We investigate the properties of the ηnucleus interaction by postulating the N*(1535) dominance for ηN system. Since the mass gap of N* and N is very close to the η meson mass, there is the possi...
Pseudo-Orbital SO(6) Symmetry for pf-Shell Nuclei
Nuclear structure Pseudo-orbital SO(6) symmetry Beta decay pf-shell nuclei
2010/10/13
This work studies the pseudo-orbital SO(6) symmetry for the first half of the 2p12-2p32-1f52
shell (denoted as the pf-shell). The spectra and beta decay are calculated for nuclei Ni, Cu and Zn with A...