Open AccessRatios of partial wave amplitudes in the decays of J = 1 and J = 2 mesons
Author(s) -
Vanamali Shastry
Publication year - 2022
Publication title -
suplemento de la revista mexicana de física
Language(s) - English
Resource type - Journals
ISSN - 2683-2585
DOI - 10.31349/suplrevmexfis.3.0308055
Subject(s) - meson , helicity , physics , pseudovector , amplitude , formalism (music) , particle physics , lagrangian , covariant transformation , coupling constant , wave function , partial wave analysis , quantum electrodynamics , nuclear physics , mathematical physics , quantum mechanics , art , musical , visual arts
We study the two-body decay of mesons using the covariant helicity formalism. We find that to explain the ratio of partials wave amplitudes (PWAs) of the decay, the Lagrangian must include derivative interactions in addition to contact interactions. We estimate the ratios of the coupling constants for the vector decays of the axial-vector, pseudovector and pseudotensor meson, and the tensor decays of the pseudotensor mesons by fitting the ratios of the PWAs to the available data and predict the ratios to some new decays.