scholarly journals Quark Structure of the X (4500), X (4700) and χc(4P,5P) States

2021 ◽  
Vol 9 ◽  
Author(s):  
J. Ferretti ◽  
E. Santopinto
Keyword(s):  
Quark Model ◽  
Channel Model ◽  
The Other ◽  
Strong Decay ◽  
Decay Widths ◽  
Quark Structure ◽  
Coupled Channel ◽  
Mass Shifts ◽  
Formula Assignment

We study some of the main properties (masses and open-flavor strong decay widths) of 4P and 5P charmonia. While there are two candidates for the χc0(4P,5P) states, the X(4500) and X(4700), the properties of the other members of the χc(4P,5P) multiplets are still completely unknown. With this in mind, we start to explore the charmonium interpretation for these mesons. Our second goal is to investigate if the apparent mismatch between the Quark Model (QM) predictions for χc0(4P,5P) states and the properties of the X(4500) and X(4700) mesons can be overcome by introducing threshold corrections in the QM formalism. According to our coupled-channel model results for the threshold mass shifts, the χc0(5P)→X(4700) assignment is unacceptable, while the χc0(4P)→X(4500) or X(4700) assignments cannot be completely ruled out.

scholarly journals Masses and OZI-Allowed Decay Widths of ϒ States in a Coupled Channel Model

2001 ◽  
Vol 106 (2) ◽  
pp. 389-400 ◽  
Author(s):  
Nozomi Yabusaki ◽  
Masanobu Hirano ◽  
Kiyoshi Katō ◽  
Motoki Sakai ◽  
Yasuo Matsuda
Keyword(s):  
Channel Model ◽  
Decay Widths ◽  
Coupled Channel

scholarly journals STRUCTURE OF Λ*(1405) AND THE Λ*-MESON-BARYON COUPLING CONSTANTS

2011 ◽  
Vol 26 (03n04) ◽  
pp. 619-621 ◽  
Author(s):  
C. S. AN ◽  
B. SAGHAI
Keyword(s):  
Quark Model ◽  
Decay Width ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Coupling Constants ◽  
Strong Decay ◽  
Quark Structure

Within an extended chiral constituent quark model, three- and five-quark structure of the S01 resonance Λ(1405) is investigated with respect to the coupling constants [Formula: see text] and [Formula: see text]. Our findings corroborate with about 50% of five-quark admixture in the Λ(1405) needed in reproducing the strong decay width, ΓΛ(1405)→(Σπ)°.

scholarly journals Effects of coupled channels on cb̄ masses and decays in NRQM with OGEP

2017 ◽  
Vol 26 (06) ◽  
pp. 1750037 ◽  
Author(s):  
Manjunath Bhat ◽  
Antony Prakash Monteiro ◽  
K. B. Vijaya Kumar
Keyword(s):  
Quark Model ◽  
Radiative Decay ◽  
Weak Decay ◽  
Exchange Potential ◽  
Complete Spectrum ◽  
Coupled Channels ◽  
Nonrelativistic Quark Model ◽  
Decay Widths ◽  
Channel Effects ◽  
Coupled Channel

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 with coupled channel effects. 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.

Giessen coupled-channel model for pion- and photon-induced reactions

2012 ◽  
Author(s):  
V. Shklyar ◽  
H. Lenske ◽  
U. Mosel
Keyword(s):  
Channel Model ◽  
Coupled Channel

Strong decay of hadrons in a semirelativistic quark model

1986 ◽  
Vol 34 (11) ◽  
pp. 3405-3413 ◽  
Author(s):  
R. Sartor ◽  
Fl. Stancu
Keyword(s):  
Quark Model ◽  
Strong Decay

THE CHIRAL QUARK MODEL AND BARYON PHENOMENOLOGY

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1785-1790 ◽  
Author(s):  
D. O. RISKA
Keyword(s):  
Quark Model ◽  
Form Factors ◽  
Axial Current ◽  
Chiral Quark Model ◽  
Pion Decay ◽  
Decay Widths ◽  
Nucleon Form Factors ◽  
Baryon Spectra ◽  
Baryon Resonances ◽  
Covariant Quark Model

The chiral quark model posits that pions couple to the axial current of constituent quarks. This chiral pion coupling governs the pion decays of baryon resonances and also implies pion and multipion interactions between the quarks. The qualitative features of this model for the description of pionic decay widths and baryon spectra are outlined. When the covariant quark model wave function for the nucleon is chosen so as to describe the empirical nucleon form factors the pion decay widths of the positive parity resonances are underpredicted. This indicates the presence of significant multiquark components in these resonances.

scholarly journals The strong decay patterns of $$Z_c$$ and $$Z_b$$ states in the relativized quark model

2019 ◽  
Vol 79 (7) ◽  
Author(s):  
Guang-Juan Wang ◽  
Xiao-Hai Liu ◽  
Li Ma ◽  
Xiang Liu ◽  
Xiao-Lin Chen ◽  
...  
Keyword(s):  
Quark Model ◽  
Strong Decay

Predissociation of the B Σu−3 state of S2: A coupled-channel model

2018 ◽  
Vol 148 (24) ◽  
pp. 244303 ◽  
Author(s):  
B. R. Lewis ◽  
S. T. Gibson ◽  
G. Stark ◽  
A. N. Heays
Keyword(s):  
Channel Model ◽  
Coupled Channel

scholarly journals Six-quark structure of d*(2380) in a chiral constituent quark model

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
Qi-Fang Lü ◽  
Fei Huang ◽  
Yu-Bing Dong ◽  
Peng-Nian Shen ◽  
Zong-Ye Zhang
Keyword(s):  
Quark Model ◽  
Constituent Quark ◽  
Constituent Quark Model ◽  
Quark Structure
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