Constituent quark model study of exotic meson states

2014 ◽  
Vol 29 ◽  
pp. 1460227 ◽  
Author(s):  
Youchang Yang ◽  
Jialun Ping ◽  
Chengrong Deng ◽  
Meng Wan
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Constituent Quark ◽  
Expansion Method ◽  
Constituent Quark Model ◽  
Babar Collaboration ◽  
Exotic Meson ◽  
Exotic States ◽  
Model Study ◽  
Meson States

Using high precision numerical method based on Gaussian expansion method for few-body systems, we studied the spectra of possible exotic meson states composed of [Formula: see text] (Q = c, b, and q = u, d, s) in non-relativistic constituent quark model. Some newly released experimental data by the BES, Belle, BaBar Collaboration can be interpreted in our calculation. Several possible exotic states are also predicted.

scholarly journals d∗(2380) Resonance in a Chiral SU(3) Constituent Quark Model

2018 ◽  
Vol 46 ◽  
pp. 1860034
Author(s):  
Yubing Dong ◽  
Pengnian Shen ◽  
Fei Huang ◽  
Zongye Zhang
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Charge Distribution ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Total Width ◽  
Compact Structure ◽  
Decay Modes ◽  
Decay Widths

Recent studies on the newly observed resonance [Formula: see text] with a compact structure in a chiral SU(3) constituent quark model are briefly reported. the overall properties, including the mass, the partial decay widths in various decay modes, and the total width, comparing with the experimental data, show that a compact hexaquark dominated structure might be a reasonable interpretation for this state. Moreover, the charge distribution of [Formula: see text] is also discussed.

The Λ(1520) photoproduction from proton

2014 ◽  
Vol 29 ◽  
pp. 1460235 ◽  
Author(s):  
Jun He
Keyword(s):  
Experimental Data ◽  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Lagrangian Method ◽  
Nucleon Resonance ◽  
Proton Target ◽  
Nucleon Resonances ◽  
Effective Lagrangian

The Λ(1520) photoproduction from proton target is investigated within the effective Lagrangian method and well compared with the experimental data. The D13 state N(2120) plays the most important role among the nucleon resonances. Besides N(2120), a nucleon resonance [Formula: see text] predicted by the constituent quark model is found also important to reproduce the experimental data. Other nucleon resonances give negligible contributions in the channel considered in this work.

Two-body strong decay of light mesons with Gaussian expansion method

2014 ◽  
Vol 29 (30) ◽  
pp. 1450175 ◽  
Author(s):  
Xiaoyun Chen ◽  
Zhaozhao Yan ◽  
Jialun Ping
Keyword(s):  
Experimental Data ◽  
Harmonic Oscillator ◽  
Quark Model ◽  
Expansion Method ◽  
Wave Functions ◽  
Chiral Quark Model ◽  
Strong Decay ◽  
Exotic States ◽  
Gaussian Expansion Method ◽  
Normal States

In this paper, we survey the radial and orbital excitations of I = 0 and [Formula: see text] systems anticipated up to 2.0 GeV in the framework of the chiral quark model. The Schrödinger equation is solved by using Gaussian expansion method. And using the wave functions obtained, instead of the simple harmonic oscillator wave functions, we study systematically the two-body strong decay (limited to S + S modes) of the systems. By comparing with the experimental data, we try to identify the normal states and exotic states.

scholarly journals Chiral constituent quark model study of the process γp → ηp ⋆

2008 ◽  
Vol 35 (3) ◽  
pp. 321-324 ◽  
Author(s):  
J. He ◽  
B. Saghai ◽  
Z. Li ◽  
Q. Zhao ◽  
J. Durand
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Model Study

DYNAMICAL STUDY OF HEAVY-BARYON SPECTROSCOPY

2008 ◽  
Vol 23 (22) ◽  
pp. 1819-1828 ◽  
Author(s):  
YOUCHANG YANG ◽  
CHENGRONG DENG ◽  
HONGXIA HUANG ◽  
JIALUN PING
Keyword(s):  
Experimental Data ◽  
Constituent Quark ◽  
Heavy Baryon ◽  
Expansion Method ◽  
Constituent Quark Model ◽  
S Wave ◽  
Dynamical Study ◽  
Heavy Baryons ◽  
Baryon Spectra ◽  
Baryon Spectroscopy

The spectroscopy of S-wave heavy-baryons containing one, two or three heavy quarks is investigated in a constituent quark model. We solve the Schrödinger equation for three particles exactly by means of a Gaussian expansion method. The calculated results of heavy-baryon spectra with a single heavy quark are consistent with the experimental data.

scholarly journals RELATIVISTIC DESCRIPTION OF THE CHARMONIUM MASS SPECTRUM

2005 ◽  
Vol 20 (12) ◽  
pp. 875-880 ◽  
Author(s):  
D. EBERT ◽  
R. N. FAUSTOV ◽  
V. O. GALKIN
Keyword(s):  
Experimental Data ◽  
Mass Spectrum ◽  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Relativistic Treatment ◽  
Relativistic Description ◽  
Good Agreement

The charmonium mass spectrum is considered in the framework of the constituent quark model with the relativistic treatment of the c quark. The obtained masses are in good agreement with the existing experimental data including the mass of ηc(2S).

Chiral constituent quark model study of the process γp → ηp

NSTAR 2007 ◽  
2008 ◽  
pp. 162-165
Author(s):  
J. He ◽  
B. Saghai ◽  
Z. Li ◽  
Q. Zhao ◽  
J. Durand
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Model Study
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