Chiral quark model

Pramana

H Weigel¹ 

[1] Institute for Theoretical Physics, T¨ubingen University, Auf der Morgenstelle 14, D-72076 Tübingen, Germany$$

关键词: Chiral symmetry;    bosonization;    Pauli–Villars regularization;    solitons;    structure functions.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

In this talk I review studies of hadron properties in bosonized chiral quark models for the quark flavor dynamics. Mesons are constructed from Bethe–Salpeter equations and baryons emerge as chiral solitons. Such models require regularization and I show that the two-fold Pauli–Villars regularization scheme not only fully regularizes the effective action but also leads the scaling laws for structure functions. For the nucleon structure functions the present approach serves to determine the regularization prescription for structure functions whose leading moments are not given by matrix elements of local operators. Some numerical results are presented for the spin structure functions.

【 授权许可】

Unknown