搜索结果: 1-15 共查到“相对论与引力场 model”相关记录22条 . 查询时间(0.472 秒)
We construct an effective model for gravity of a central object at large scales. To leading order in the large radius expansion we find a cosmological constant, a Rindler acceleration, a term that set...
L.R.S. Bianchi type II Stiff Fluid cosmological model with Decaying Vacuum Energy Density $\Lambda$ in general relativity
LRS Bianchi type II models Cosmological constant
2010/12/20
Locally rotationally symmetric (L.R.S.) Bianchi type II stiff fluid cos-mological model is investigated. To get the deterministic model of the universe, we have assumed a condition A = Bm between metr...
An exact cosmological solution of a Scalar-Tensor Gravity theory compatible with the $\Lambda$CDM model
cosmological solution Scalar-Tensor Gravity theory compatible $\Lambda$CDM model
2010/12/21
We consider the massive Scalar-Tensor theory in the Jordan frame F() = K22,Z() = 1, and U() = (1/2)m22, F() corresponds to a constant Brans-Dicke parameter !BD = 1/4K2.
Modified general relativity as a model for quantum gravitational collapse
Modified general relativity model quantum gravitational collapse
2010/12/20
We study a class of Hamiltonian deformations of the massless Einstein-Klein-Gordon system in spherical symmetry for which the Dirac constraint algebra closes. The system may be regarded as providing e...
A relativistic quark model with infrared confinement and the tetraquark state
Relativistic quark model confinement exotic mesons
2011/1/10
We explore the consequences of treating the X(3872) meson as a tetraquark bound state. As dynamical framework we employ a relativistic constituent quark model which includes infrared confinement in an...
Conservation laws for strings in the Abelian Sandpile Model
Conservation laws Abelian Sandpile Model
2010/4/2
The Abelian Sandpile generates complex and beautiful patterns and seems to display allometry. On the plane, beyond patches, patterns periodic in both dimensions, we remark the presence of structures p...
Chaotic dynamics in a simple bouncing ball model
Chaotic dynamics simple bouncing ball model
2010/4/2
We study dynamics of a ball moving in gravitational field and colliding with a moving table. The motion of the limiter is assumed as periodic with piecewise constant velocity - it is assumed that the ...
Spherical Symmetric Solution in f(R) Model Around Charged Black Hole
f(R)Gravity Modified gravity Spherical Symmetry
2010/3/18
A static, asymptotically flat, spherically symmetric solutions is investigated in f(R) theories of gravity for a charged black hole. We have studied the weak field limit of f(R) gravity for the some f...
Noether symmetric minisuperspace model of $f(R)$ cosmology
metric $f(R)$ cosmology symmetric minisuperspace
2010/3/18
We study the metric $f(R)$ cosmology using Noether symmetry approach by utilizing the behavior of the corresponding Lagrangian under infinitesimal generators of the desired symmetry. The existence of ...
Kantowski-Sachs viscous fluid cosmological model with a varying L
Kantowski-Sachs viscous fluid model cosmology variable cosmological constant
2010/4/8
We study the Kantowski-Sachs cosmological model filled with viscous fluid in the presence of cosmological term L. To get a deterministic solution, a condition between metric potentials is used. The vi...
Static Plane Symmetric Zeldovich Fluid Model in Scale Invariant Theory
Plane Symmetric Gauge Function Zeldovich Fluid Space-time
2010/4/8
Field equations in the presence of a perfect fluid distribution for static plane symmetric metric are obtained in the scale invariant theory of gravitation proposed by Wesson [1]. A static Zeldovich f...
πNN and ΔπN Couplings in a Relativistic Quark Model Approach
relativistic quark model
Δ(1232) coupling constant
2007/8/15
2001Vol.36No.2pp.173-177DOI:
πNN and ΔπN Couplings in a Relativistic Quark Model Approach
DONG Yu-Bing
Institute of High Energy Physics, The Chinese Academy of Sciences,...
A Solvable Model in Two-Dimensional
Gravity Coupled to a Nonlinear Matter Field
solvable model two-dimensional gravity nonlinear matter field
2007/8/15
2001Vol.35No.1pp.19-21DOI:
A Solvable Model in Two-Dimensional
Gravity Coupled to a Nonlinear Matter Field
YAN Jun,1 WANG Shun-Jin1 and TAO Bi-You2
1 Institute of Modern...
Meson Cloud Effect on Δ(1232) Resonance Transition Properties with a Relativistic Quark Model Approach
relativistic quark model
Δ(1232) coupling constants
meson cloud decay width
2007/8/15
2002Vol.38No.1pp.53-58DOI:
Meson Cloud Effect on Δ(1232) Resonance Transition Properties with a Relativistic Quark Model Approach
DONG Yu-Bing and FENG Qing-Guo
Institu...
Nucleon Spin Content in a Relativistic Quark Potential Model
Approach
relativistic quark model approach Goldstone bosons spin content
2007/8/15
2002Vol.37No.6pp.693-698DOI:
Nucleon Spin Content in a Relativistic Quark Potential Model
Approach
DONG Yu-Bing and FENG Qing-Guo
Institute of High Energy Physics, the C...