Light-quark meson spectrum in the covariant oscillator quark model with one-gluon-exchange effects

1987 ◽  
Vol 35 (1) ◽  
pp. 265-281 ◽  
Author(s):  
Shin Ishida ◽  
Kenji Yamada
Keyword(s):  
Quark Model ◽  
Light Quark ◽  
Meson Spectrum ◽  
Gluon Exchange ◽  
Exchange Effects

scholarly journals INTER-QUARK POTENTIALS IN BARYONS AND MULTI-QUARK SYSTEMS IN QCD

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2331-2339 ◽  
Author(s):  
HIDEO SUGANUMA ◽  
ARATA YAMAMOTO ◽  
NAOYUKI SAKUMICHI ◽  
TORU T. TAKAHASHI ◽  
HIDEAKI IIDA ◽  
...  
Keyword(s):  
Lattice Qcd ◽  
Quark Model ◽  
Flux Tube ◽  
Light Quark ◽  
Linear Potential ◽  
Lattice Calculation ◽  
Quark Confinement ◽  
Gluon Exchange ◽  
The One

We perform the first studies of various inter-quark potentials in SU(3)c lattice QCD. From the accurate lattice calculation for more than 300 different patterns of three-quark (3Q) systems, we find that the static 3Q potential V3Q is well described by Y-Ansatz, i.e., the Coulomb plus Y-type linear potential. Quark confinement mechanism in baryons is also investigated in maximally-Abelian projected QCD. We next study the multi-quark potentials VnQ (n = 4,5) in SU(3)c lattice QCD, and find that they are well described by the one-gluon-exchange Coulomb plus multi-Y type linear potential, which supports the flux-tube picture even for the multi-quarks. Finally, we study the heavy-heavy-light quark (QQq) potential both in lattice QCD and in a lattice-QCD-based quark model.

One-gluon exchange effects on linear meson trajectories in the covariant oscillator quark model

1994 ◽  
Vol 107 (11) ◽  
pp. 2559-2566
Author(s):  
K. Yamada ◽  
S. Ishida ◽  
T. Tanimoto ◽  
M. Oda
Keyword(s):  
Quark Model ◽  
Gluon Exchange ◽  
Exchange Effects

Properties of strangelets at zero temperature in a new quark mass confinement model

2014 ◽  
Vol 23 (03) ◽  
pp. 1450013 ◽  
Author(s):  
Shiwu Chen ◽  
Qin Li ◽  
Jianfeng Xu ◽  
Li Gao ◽  
Chengjun Xia
Keyword(s):  
Quark Model ◽  
Quark Mass ◽  
Present Model ◽  
Baryon Number ◽  
Zero Temperature ◽  
Gluon Exchange ◽  
The Stability ◽  
Stable Radius ◽  
Confinement Model

We investigate the properties of strangelets at zero temperature with a new quark model in which the linear confinement and one-gluon-exchange (OGE) interactions are integrated as a whole. The charge, parameters dependence and the stability of strangelets are discussed. Our results showed that the OGE interaction lowers the energy of a strangelet, and consequently makes its stable radius smaller than that in the case of not including this interaction, and less than that of a nucleus with the same baryon number. Therefore, the strangelet in the present model has more chance to be absolutely stable.

scholarly journals Meson Spectrum from the Bethe-Salpeter Equation

1997 ◽  
Vol 50 (1) ◽  
pp. 95 ◽  
Author(s):  
C. J. Burden ◽  
L. Qian ◽  
C. D. Roberts ◽  
P. C. Tandy ◽  
M. J. Thomson
Keyword(s):  
Mass Spectrum ◽  
Pseudoscalar Meson ◽  
Phenomenological Model ◽  
Light Quark ◽  
Meson Spectrum ◽  
Decay Constants ◽  
Model Based ◽  
Meson Octet

We present details of a model for calculating the mass spectrum of light-quark mesons and decay constants of the pseudoscalar meson octet from a phenomenological model based on Dyson–Schwinger and Bethe–Salpeter equations. In this model the Bethe-Salpeter kernel is approximated by a separable ansatz obtained from input quark propagators.

scholarly journals Mass spectra and decays of ground and orbitally excited cb̄ states in nonrelativistic quark model

2017 ◽  
Vol 32 (04) ◽  
pp. 1750021 ◽  
Author(s):  
Antony Prakash Monteiro ◽  
Manjunath Bhat ◽  
K. B. Vijaya Kumar
Keyword(s):  
Quark Model ◽  
Mass Spectra ◽  
Radiative Decay ◽  
Weak Decay ◽  
Exchange Potential ◽  
Complete Spectrum ◽  
Confinement Potential ◽  
Gluon Exchange ◽  
Nonrelativistic Quark Model ◽  
Decay Widths

The complete spectrum of [Formula: see text] states is obtained in a phenomenological nonrelativistic quark model (NRQM), which consists of a confinement potential and one gluon exchange potential (OGEP) as effective quark–antiquark potential. We make predictions for the radiative decay (E1 and M1) widths and weak decay widths of [Formula: see text] states in the framework of NRQM formalism.

scholarly journals DECAY CONSTANTS OF HEAVY–LIGHT MESONS IN THE RELATIVISTIC QUARK MODEL

2002 ◽  
Vol 17 (13) ◽  
pp. 803-807 ◽  
Author(s):  
D. EBERT ◽  
R. N. FAUSTOV ◽  
V. O. GALKIN
Keyword(s):  
Quark Model ◽  
Light Quark ◽  
Relativistic Effects ◽  
Relativistic Quark Model ◽  
Sum Rule ◽  
Decay Constants ◽  
Model Predictions ◽  
Relativistic Treatment ◽  
Light Mesons ◽  
Good Agreement

The decay constants of pseudoscalar and vector heavy–light mesons are calculated in the framework of the relativistic quark model with the completely relativistic treatment of the light quark. It is argued that relativistic effects play a significant role. Good agreement of the model predictions with recent lattice and QCD sum rule calculations as well as available experimental data are found.

scholarly journals Constraints on light quark masses from the heavy meson spectrum

1995 ◽  
Vol 52 (9) ◽  
pp. 5202-5205 ◽  
Author(s):  
Markus A. Luty ◽  
Raman Sundrum
Keyword(s):  
Light Quark ◽  
Heavy Meson ◽  
Meson Spectrum ◽  
Quark Masses
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