The decay τ → 3πντ and axial-vector meson a1 in the NJL model
Volkov M.K. Nurlan K. Pivovarov A.A.
30 July 2023World Scientific
Modern Physics Letters A
2023#38Issue 22-23
The branching fractions of τ ! π+π-π-ντ and τ ! π-2π0ντ are calculated within the chiral NJL model. Features of the axial-vector a1 meson which play an important role in describing the τ decays are discussed. Permissible values for the mass and width of the a1 meson are considered in accordance with the latest experiments. #c World Scientific Publishing Company.
Chiral Lagrangians; Decays of taus
Text of the article Перейти на текст статьи
Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, 141980, Russian Federation
The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
L. N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Bogoliubov Laboratory of Theoretical Physics
The Institute of Nuclear Physics
L. N. Gumilyov Eurasian National University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026