Flavour mixing and spin of the proton

M. Takizawa, W. Weise

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


We study the proton matrix elements of the flavour singlet axial current using an extended three-flavour Nambu-Jona-Lasinio model that includes not only an axial anomaly interaction but also a flavour-mixing four-quark interaction in the axial-vector channel. The pseudoscalar meson spectrum gives strong constraints on the strength of this interaction. We investigate its influence on the spin structure of constituent quarks in the proton.

Original languageEnglish
Pages (from-to)323-326
Number of pages4
JournalPhysics Letters B
Issue number3-4
StatePublished - 17 Oct 1991
Externally publishedYes


Dive into the research topics of 'Flavour mixing and spin of the proton'. Together they form a unique fingerprint.

Cite this