Электронный каталог

Статья

Volkov, M.K.
Description of the Decay *t*>K*p*p*n&sub(*t) in the NJL-Type Chiral Quark Model / M.K.Volkov, A.A.Pivovarov, K.Nurlan // Physical Review D [Electronic resource]. – 2023. – Vol.107, No.11. – P.116009. – URL: https://doi.org/10.1103/PhysRevD.107.116009. – Bibliogr.:33.

The branching fractions of the decays τ−→K−π+π−ν&sub(τ), τ−→K−π0π0ν&sub(τ), and τ−→¯K0π−π0ν&sub(τ) are calculated in the U(3)×U(3) Nambu–Jona-Lasinio-type chiral model. Four intermediate channels are considered: the contact channel and the channels with the intermediate axial-vector, vector, and pseudoscalar mesons. The additional resonance states K∗π and Kρ are taken into account in all channels. We show that the main contributions to the widths of these decays are given by the axial-vector channel. In the axial-vector channel, the intermediate resonances K1(1270) and K1(1400) are taken into account. The obtained results are in satisfactory agreement with the known experimental data.



ОИЯИ = ОИЯИ (JINR)2023
Спец.(статьи,препринты) = С 324.1б - Сильные взаимодействия. Электромагнитная структура частиц. Алгебра токов. Киральные теории. Теория Редже$
Спец.(статьи,препринты) = С 324.1д - Квантовая хромодинамика$
Бюллетени = 49/023