A study of the nucleon-nucleon spin-orbit force in the quark model

Qi, L.J.; Zhang, J.H.; Shen, Peng-Nian; Zhang, Z.Y.; Yu, YW

doi:10.1016/0375-9474(94)00801-s

Cited by 9 publications

(4 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To calculate the matrix elements in Eq. (2.30), it is convenient first to calculate three-quark matrix elements of various operators with respect to the [3]-symmetric and [21]-symmetric SU 6 wave functions. We need a small number of operators for this calculation, which are always expressed as composite operators of the two SU 6 unit vectors [49,58].…”

Section: Effective-meson Exchange Potentialsmentioning

confidence: 99%

“…A fully microscopic calculation including both PS-and σ-meson exchange potentials at the quark level was undertaken by the Salamanca group [18,19] for the NN interaction in the framework of the chiral QM. This model was further extended by the Beijing group [20,21,22,23] to a chiral SU 3 model with strangeness degree of freedom, and applied to the Y N and Y Y interactions. In the meantime, meson-exchange models have also made a progress in the description of the medium-range attraction of the Y N interaction.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Baryon-Baryon Interactions in a Quark Model and their Applications to Few-Baryon Systems

Fujiwara

Suzuki

2008

Nuclear Physics News

View full text Add to dashboard Cite

IntroductionStrong interactions acting between baryons, the nucleonnucleon (NN) interaction among others, play a basic role in building nuclei. Because of its importance enormous efforts, both experimental and theoretical, have hitherto been paid to understand the nature of the NN interaction. The quantum chromodynamics (QCD) [1] is nowadays believed to be a fundamental theory of the strong interaction. From this modern view, Yukawa's meson theory [2] for the nuclear force is regarded as an effective description of the interaction of the composite nucleons, governed by the strongly nonperturbative dynamics of quarks and gluons. A recent lattice QCD calculation [3] confirms this view by producing both the short-range repulsion and medium-range attraction for the three-quark plus three-quark (3q-3q) configuration. Further studies in this direction have to be made for a quantitative description of the nuclear force.The compositeness of baryons was exploited in the 1960s in a spin-flavor SU 6 quark model to understand their groundstate properties. It was in the late 1970s that the QCDinspired constituent quark model was initiated for the study of the NN interaction [4,5]. Here the dynamics of the 3q-3q system was formulated in a microscopic theory called the resonating-group method (RGM). The inputs needed in the RGM are a quark-quark potential and a wave function ansatz for the baryons. The asymptotic freedom of QCD and the color confinement of the baryons are important ingredients to be reflected in the quark-quark potential. The former is modeled by the color analogue of the Fermi-Breit (FB) interaction, that is, the dominant one-gluon exchange interaction, and the latter is expressed by a phenomenological confinement potential that is assumed to be flavor independent. It has become vital to supplement the mesonic degrees of freedom for a realistic description of the medium-and longranged parts of the baryon-baryon interactions.The quark-model baryon-baryon interaction has been extended by the Kyoto-Niigata group [6] to cover all pairs of

show abstract

Section: Effective-meson Exchange Potentialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Baryon-Baryon Interactions in a Quark Model and their Applications to Few-Baryon Systems

Fujiwara

Suzuki

2008

Nuclear Physics News

View full text Add to dashboard Cite

show abstract

“…Nevertheless, all the above results agree with the calculations of Salamanca's group [8] and Zhang's group. [23] -5 In order to find N∆ and ∆∆ resonances, we extend the NN scattering phase shifts calculation to energies beyond the N∆ or ∆∆ threshold. It is enough to extract the information on the resonance energy even though we cannot reproduce the phase shifts above the pion-production threshold.…”

Section: -2mentioning

confidence: 99%

Nucleon-Nucleon Interaction in Constituent Quark Models

Xu¹,

Huang²,

Ping³

et al. 2011

Chinese Phys. Lett.

View full text Add to dashboard Cite

show abstract

“…but also in describing baryon-baryon interactions.' [2][3][4][5][6][7][8] ! Meanwhile its QCD foundations are widely investigated in many works.I [9][10][11] !…”

Section: Introductionmentioning

confidence: 99%

Spin-Orbit Force of NN Interaction Based on Chiral SU(3) Quark Model

Shu

Shen

Zhang

et al. 1998

Commun. Theor. Phys.

View full text Add to dashboard Cite

Spin-orbit force of the NN interaction is studied in the framework of the chiral SU(3) quark model. Both symmetric and antisymmetric spin-orbit (LS) forces of the one gluon exchange and scalar meson exchanges are taken into account. It is shown that although the inclusions of the LS forces caused by the scalar meson exchanges and the antisymmetric LS terms in this model can notably strengthen the LS couplings in the states of 3PJ of the NN interaction, an additional enhancement factor is still needed in order to describe the experimental data.

show abstract

A study of the nucleon-nucleon spin-orbit force in the quark model

Cited by 9 publications

References 21 publications

Baryon-Baryon Interactions in a Quark Model and their Applications to Few-Baryon Systems

Baryon-Baryon Interactions in a Quark Model and their Applications to Few-Baryon Systems

Nucleon-Nucleon Interaction in Constituent Quark Models

Spin-Orbit Force of NN Interaction Based on Chiral SU(3) Quark Model

Contact Info

Product

Resources

About