Ground state masses and binding energies of the nucleon, hyperon and heavy baryons in a light-front model

The r. m. s. radius and the binding energy of oxygen 16 are calculated for several different internueleon potentials. These potentials all fit the low-energy data for two nucleons, they have hard cores of differing radii, and they include the Gammel-Thaler potential (core radius 0·4 fermi). The calculated r. m. s. radii range from 1·5 f for a potential with core radius 0·2 f to 2·0 f for a core radius 0·6 f. The value obtained from electron scattering experiments is 2·65 f. The calculated binding energies range from 256 MeV for a core radius 0·2 f to 118 MeV for core 0·5 f. The experimental value of binding energy is 127·3 MeV. The 25% discrepancy in the calculated r. m. s. radius may be due to the limitations of harmonic oscillator wave functions used in the unperturbed system.

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MOMENTUM-SPACE FADDEEV CALCULATIONS FOR GROUND-STATE TRIPLY AND DOUBLY HEAVY BARYONS IN THE CONSTITUENT QUARK MODEL

Modern Physics Letters A ◽

10.1142/s0217732310032962 ◽

2010 ◽

Vol 25 (24) ◽

pp. 2077-2088 ◽

Cited By ~ 3

Author(s):

W. ZHENG ◽

H. R. PANG

Keyword(s):

Quark Model ◽

Ground State ◽

Constituent Quark ◽

Relativistic Correction ◽

Constituent Quark Model ◽

Spin Splitting ◽

Decuplet Baryon ◽

Heavy Baryons ◽

Three Body ◽

S Quarks

In the framework of constituent quark model, mass spectra of the ground-state baryons consisting of three or two heavy (b or c) and one light (u, d or s) quarks are calculated by solving three-body Faddeev equations. The results imply that, it is possible to obtain a unified model to describe heavy baryons spectra, as well as meson and SU(3) octet and decuplet baryon spectra. We find that, when taking into account the relativistic correction quark–diquark approximation and three-body Faddeev approach tend to give similar predictions for heavy–light systems. We also study the spin splitting of JP = (1/2+) and JP = (3/2+).

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Woods-Saxon Potentials for Ground State Binding Energies of A = 5 - 16 Λ Hypernuclei.

Physics Essays ◽

10.4006/1.3076391 ◽

1988 ◽

Vol 1 (2) ◽

pp. 47-51

Author(s):

J. J. Bevelacqua

Keyword(s):

Ground State ◽

Binding Energies

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Woods‐Saxon Potentials for Ground‐State Binding Energies of Σ Hypernuclei

Physics Essays ◽

10.4006/1.3029224 ◽

1996 ◽

Vol 9 (1) ◽

pp. 3-9

Author(s):

J. J. Bevelacqua

Keyword(s):

Ground State ◽

Binding Energies

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HEAVY PENTAQUARKS AND DOUBLY HEAVY BARYONS IN QUASIPARTICLE APPROACH

Modern Physics Letters A ◽

10.1142/s021773231250006x ◽

2012 ◽

Vol 27 (01) ◽

pp. 1250006 ◽

Cited By ~ 2

Author(s):

A. CHANDRA ◽

A. BHATTACHARYA ◽

B. CHAKRABARTI

Keyword(s):

Heavy Quark ◽

Flux Tube ◽

Regge Trajectory ◽

Ground State ◽

Tube Model ◽

Regge Trajectories ◽

Heavy Baryons ◽

Good Agreement

In the framework of the quasiparticle approach, the ground state mass of heavy pentaquarks have been investigated in diquark–diquark–antiquark picture and the higher states are investigated in the mass loaded flux tube model where two light diquarks are supposed to be linked by a flux tube to the heavy quark. The Regge trajectories for heavy pentaquarks have been studied. The Regge slope (α) of these particles have been obtained as ≈1 GeV2 which indicates that the Regge trajectory follows the linearity conditions with universal value of α (~ 1 GeV2). The ground state mass of doubly charm and doubly bottom baryons like [Formula: see text] have also been investigated in quasiparticle approach. The results are found to be in reasonably good agreement with the experimental and other theoretical estimates.

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