We calculate the predicted width for the radiative decay of a 1++ heavy meson via the channel 1++→1−−+γ
Nearby in the stack
in the covariant light-front quark model. Specifically, we compute the decay widths for
χc1(1P)→J/ψ+γ
and
χb1(nP)→Υ(n′S)+γ
. The results are compared with experimental data and with predictions from calculations based on nonrelativistic models and their extensions to include relativistic effects.