The effect of hidden-color channel on the structure of strangeness S = −1 dibaryon

2021 ◽  
Author(s):  
T. G. Zhang ◽  
Y. H. Wang ◽  
L. N. Chen ◽  
L. R. Dai
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Color Channel

The study of dibaryons has gained extensive attention both theoretically and experimentally since the confirmation of six-quark exotic [Formula: see text] dibaryon (with spin 3 and isospin 0) by recent COSY experiment. We ever proposed the chiral SU(3) quark model and predicted the binding energy of the [Formula: see text] system, in which the hidden-color channel was shown to play an important role in its structure. In this work, we further study the structure of [Formula: see text] dibaryon (with spin 0 and isospin [Formula: see text]) and strangeness [Formula: see text] under the chiral SU(3) quark model. The results show that hidden-color channel has an obvious influence on the binding energy of [Formula: see text] system.

scholarly journals Quark-model based study of the triton binding energy

2002 ◽  
Vol 65 (3) ◽  
Author(s):  
B. Juliá-Díaz ◽  
J. Haidenbauer ◽  
A. Valcarce ◽  
F. Fernández
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Triton Binding Energy ◽  
Model Based

NON-NUCLEAR MULTIQUARK STATES: DIBARYONS AND PENTAQUARKS FROM A SUCCESSFUL NUCLEAR QUARK MODEL

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1963-1966
Author(s):  
T. GOLDMAN
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Free Parameter ◽  
New Physics ◽  
Low Energy ◽  
Nuclear Binding Energy ◽  
Low Mass ◽  
Scattering Phase ◽  
Multiquark States ◽  
Scattering Phase Shifts

A model for nuclei described directly in terms of quarks has been developed in both relativistic and non-relativistic forms. It describes nuclear binding energy and structure for small nuclei (A=3,4) systematically correctly, including the EMC effect. With one free parameter each for strange and for nonstrange states, it also well describes low energy baryon-nucleon scattering, phase shifts and potentials. It predicts low mass, narrow dibaryon and pentaquark states. To be consistent with reported states, new physics may be required that is not included in any quark model to date.

scholarly journals THE POSSIBLE DI-OMEGA DIBARYON IN QUARK CLUSTER MODEL

2014 ◽  
Vol 26 ◽  
pp. 1460120 ◽  
Author(s):  
L. R. DAI ◽  
J. LIU ◽  
L. YUAN
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Cluster Model ◽  
Bound State ◽  
Nucleon Nucleon ◽  
Scattering Data ◽  
Nucleon Scattering ◽  
Scalar Mesons ◽  
Ideal Mixing ◽  
The Ideal

The mixing of scalar mesons is introduced into the baryon-baryon system in the chiral SU(3) quark model to further dynamically investigate the Di-omega state by using the same parameters as those in reasonably describing the experimental hyperon-nucleon and nucleon-nucleon scattering data. Two different mixings of scalar mesons, the ideal mixing and 19° mixing, are discussed, and compared with no mixing. The results show that it is still deeply bound state if 19° mixing is adopted, the same as those of no mixing. However, for ideal mixing, the binding energy is reduced quite a lot, yet it is still a bound state.

Mass and energy dependence of the transverse momentum densities in covariant parton model

2015 ◽  
Vol 30 (27) ◽  
pp. 1550133 ◽  
Author(s):  
M. M. Yazdanpanah ◽  
A. Mirjalili ◽  
A. Behjat Ramezani
Keyword(s):  
Binding Energy ◽  
Transverse Momentum ◽  
Quark Model ◽  
Energy Dependence ◽  
Parton Model ◽  
Longitudinal Momentum ◽  
Transverse Momentum Dependent ◽  
Unpolarized Case ◽  
Covariant Quark Model ◽  
Good Agreement

The parton densities which are dependent on transverse momentum, open a way to understand better the structure of quarks and gluons in a more complete way. We are investigating a method based on the covariant quark model which enables us to extract the transverse momentum dependent (TMD) densities from the usual parton densities which are just dependent on the longitudinal momentum. In continuation, we obtain the dependence of the TMDs on binding energy and the mass of quarks. We do some calculations to obtain the TMDs in the unpolarized case while the mass and binding energy of partons are varying. Considering these effects, the results for TMDs are in good agreement with the results of the recent related models.

NEUTRON-DEUTERON SCATTERING PREDICTED BY THE QUARK-MODEL BARYON-BARYON INTERACTION

2010 ◽  
Vol 25 (21n23) ◽  
pp. 2006-2007
Author(s):  
K. FUKUKAWA ◽  
Y. FUJIWARA
Keyword(s):  
Elastic Scattering ◽  
Binding Energy ◽  
Quark Model ◽  
Cross Sections ◽  
Differential Cross ◽  
Scattering Length ◽  
Deuteron Scattering ◽  
Baryon Interaction ◽  
Spin Observables ◽  
Three Body

We apply our quark-model NN interaction fss2 to the nd scattering in the Faddeev formalism. A consistent description of the triton binding energy, the nd scattering length, the differential cross sections, and spin observables of the elastic scattering up to 65 MeV is achieved without introducing three-body forces.

THE STUDY OF DIBARYON SYSTEMS WITH STRANGENESS ON CHIRAL QUARK MODEL

2005 ◽  
Vol 20 (01) ◽  
pp. 69-77
Author(s):  
HOURONG PANG ◽  
JIALUN PING ◽  
XIAOHUA WU
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Root Mean Square ◽  
Bound State ◽  
Group Method ◽  
Chiral Quark Model ◽  
Mean Square ◽  
Narrow Resonance ◽  
The Masses

We expand Salamanca SU (2) chiral quark model to SU (3) one and calculate promising dibaryon candidates with strangeness S=-3,-6 in the framework of resonating group method. We find that, besides ΩΩ, the mass of NΩ state is about 23–38 MeV lower than its threshold, it might appear as a bound state or a narrow resonance. The effect of K and η exchanges on the masses of strangeness and nonstrangeness systems has been studied and found to be negligible for nonstrangeness systems. However this effect brings some changes (about tens of MeV) on the masses of strangeness systems. We have also studied the sensitivities of binding energy and root mean square radius to the mass of s-quark.

scholarly journals $\Sigma_c {\bar D}$ AND $\Lambda_c {\bar D}$ STATES IN A CHIRAL QUARK MODEL

2014 ◽  
Vol 26 ◽  
pp. 1460071
Author(s):  
W. L. WANG ◽  
F. HUANG ◽  
Z. Y. ZHANG ◽  
B. S. ZOU
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Recent Work ◽  
Bound State ◽  
Repulsive Interaction ◽  
Chiral Quark Model ◽  
Text Interaction

We report our recent work on a dynamical investigation of the [Formula: see text] and [Formula: see text] states in a chiral quark model. Our results show that the [Formula: see text] interaction is attractive, which consequently results in a [Formula: see text] bound state with the binding energy of about 5-42 MeV, unlike the case of [Formula: see text] state, which has a repulsive interaction and thus is unbound.

THE EFFECTS OF NUCLEON QUARK SUBSTRUCTURE ON THE 3He-3H ELECTROMAGNETIC MASS DIFFERENCE

1989 ◽  
Vol 04 (15) ◽  
pp. 1403-1408 ◽  
Author(s):  
KIM MALTMAN
Keyword(s):  
Binding Energy ◽  
Symmetry Breaking ◽  
Quark Model ◽  
Mass Difference ◽  
Energy Difference ◽  
Relativistic Quark Model ◽  
Electromagnetic Mass ◽  
Charge Symmetry Breaking ◽  
Charge Symmetry ◽  
Quark Substructure

It is argued that the neglect of intrinsic quark motions within the nucleon implicit in traditional nuclear estimates of magnetic contributions to the A=3 binding energy difference produces an underestimate of the size of these contributions. A schematic non-relativistic quark model calculation demonstrates that the magnitude of the discrepancy is unlikely to be neglible, and that the sign of the effect is such as to require an increase in charge symmetry breaking from other sources.

GAUSSIAN NONLOCAL POTENTIALS FOR THE QUARK-MODEL BARYON–BARYON INTERACTIONS

2009 ◽  
Vol 24 (11n13) ◽  
pp. 1035-1038 ◽  
Author(s):  
K. FUKUKAWA ◽  
Y. FUJIWARA ◽  
Y. SUZUKI
Keyword(s):  
Binding Energy ◽  
Quark Model ◽  
Special Functions ◽  
Phase Shifts ◽  
Deuteron Binding Energy ◽  
Legendre Quadrature ◽  
Nonlocal Potentials

Gaussian nonlocal potentials for the quark-model baryon–baryon interactions are derived by using the Gauss-Legendre quadrature for the special functions. The reliability of the approximation is examined with respect to the phase shifts and the deuteron binding energy. The potential is accurate enough if one uses seven-point Gauss-Legendre quadrature.

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