Studying The Hadron States With The Qq +qq +(q) Quark Stucture

Conventional baryon wave function only considered three price quark. Observedin the experiment, the proton's strange magnetic moment is positive, strange electricform factor is negative, This shows that the proton must exist within the strange quarkcomponent. Proton wave function should consider the contribution of the Pentaquarkfunction, Therefore, we propose a quark model of baryon-Linear combination of Three-quark and pentaquark components. because conventional baryon Three-quark functionhave now been ?nalized, This article focuses on the pentaquark structure. Startingfrom the chiral SU(3) quark model, By group theory to construct the pentaquarkfunction. For the pentaquark, There are many quark groups structure, This paperstudies two-quark structure qq + qq + (q|-) .We believe that the pentaquark quark system is formed in the traditional modelof three-quark baryon which Stimulates a quark pair. So there are four of ?ve quarksare quarks and one anti-quark. According to the baryon quantum number(Includingisospin, spin, color, etc.) and angular momentum coupling, we can draw the symmetrystructure of pentaquark system with the flavor, spin, color, Such as isospin is 1/2 andspin is 1/2 of the nuclear, its Flavor symmetry structure can only be . The symmetrystructure of spin is , Colorless structure of the system is . Obtained the symmetrystructure of pentaquark system, we can discuss the qq+qq+(q|-) structure of pentaquark.This article only discuss the case of space does not stimulate,therefore, the fourquarks are restricted due to the exclusion principle of Pauli,so they are all antisymmet-ric,the corresponding partition is [1111]OFSC. As the article discusses the pentaquarkstructure is the structure of qq + qq + (q|-) ,So first of all according the rules of the innerproduct four quarks [1111]OFSC are decomposed into the orbit space (O),flavor space(F), spin space (S), color space ( C), then the O-F-S-C of four quarks are decomposedinto the O-F-S-C of two quarks , obtaining the Wave function of pentaquark structureof qq+qq+ (q|-) .The wave function for the orbit space, consider only the ground state, we take advantage of the Jacobi coordinates to construct harmonic oscillator wave func-tion required to meet the symmetry orbit space wave function. we have the Completewave function including the orbit space,flavor space, spin space, color space , Using thechiral SU(3) quark model ,we Calculate octet baryon spectrum of pentaquark Wavefunction. Obtaining the Wave function of pentaquark structure of qq + qq + (q|-) ,andhave Linear combination of Three-quark and pentaquark components with the samequantum number.The results showed that in the chiral SU(3) quark model, the introduction ofpentaquark components can be more than three-quark model wave function of a betterdescription of baryon spectra.