Interaction Base On The Chiral Quark Model And The Binding Energy Of Light Hypernuclei

The phenomenological interactions have frequently been employed as a general method in studying of Y ? Ninteractions. So many free parameters make it inadequately in describing the non-pertubative QCD behavior in the short and medium ranges of the interactions. Although the calculations succeed in explaining some properties of some hypernucleis, it is impossible for it to agree with all the experimental data. A general model is always one of studying of hypernuclei.. Now, the theoretical studying in hypernuclei physics goes deep into the quark level from the bayon level with the development of particle physics. The research of near several dacades enunciated that the meson featured in the atomic nucleus phenomenons. The basic theories of strong interaction is based on the Quantum Chromdynamics of free degree of quark an gumson an norm field theory. This theory is very successful at high energy region, but how to apply it to the low energy region is far from solving. We know that QCD at low energy far region is deep non-pertubative, it is still need to fall back on the model theories in the actual application. As a model with QCD's inspirit, the constituent quark model (CQM) turned out to be quite successful in studying N ? N interaction dynamically. As long as the quark carries constituent mass, which is about several hundred MeV, the chiral symmetry of the Lagragian is broken. It is well know that the chiral symmetry is very important symmetry reqired in hadronic physics. Therefore, restoring the chiral symmetry in the Lagragian come out to be very important. That is to say, it is necessary to found a Lagragian which can give constituent quark mass and quark-chiral interaction and matchrequest of QCD theory. How to restore the chiral symmetry of the Lagragian has contained many work, In 1960, GellMann and Levy gave the method to restore the chiral symmetry in σmodel on the nuclei level of structure, it got to be origin for the chiral symmetry model. Recently, Fernandez et. gave a quark-quark interaction potential which included not only the spontaneous chiral symmetry breaking, but considered changing in πand σas non-pertubative effect from QCD vacuumson. But in these tow model, they only gave consideration to πand σfields interaction. In fact a common form can concludes scalar field for isospin being vector and pseudoscalar field for isospin being scalar. In present paper, we synthetically take into account tensor forces in addition to the central forces, checkout the correctness of Hamiltonian which include tensor forces. With this Hamiltonian we also calculate the non-local potential of Λ? N interaction, as well as calculate binding energys of some light hypernucleis. Although the effect of tensor forces to the nuclear construct is minor, it is indicated that the result is closer to the experimental value while taking into account tensor forces in addition to the central forces。Once again the correctness of the chiral SU (3)quark model is been proved. In a word, it will be positive, applying the chiral SU (3)quark model to the research of light hypernucleis, not only for the development of the research of hypernuclear physics but also for the more consummate of the model itself.