Электронный каталог

Статья

Osipov, A.A.
1/N&sub(c) Nambu-Jona-Lasinio Model: *p*0, *h, and *h' Mesons / A.A.Osipov // Physical Review D [Electronic resource]. – 2023. – Vol.108, No.3. – P.036012. – URL: https://doi.org/10.1103/PhysRevD.108.036012. – Bibliogr.:52.

We continue to study the properties of the light pseudoscalar nonet within the combined framework of Nambu–Jona-Lasinio model and 1/Nc expansion, assuming that current quark masses count of order O(1/Nc). The masses, mixing angles and decay constants of the π0, η and η′ are calculated. The role of the U(1)A anomaly is emphasized. It is shown that the gluon anomaly suppresses the leading order effects that might otherwise be substantial for the η→3π amplitude. A detailed comparison with the known results of 1/Nc chiral perturbation theory is made.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 324.1д - Квантовая хромодинамика$
Бюллетени = 51/023