The back decay width is determined by the same matrix element as the formation, though it should be noted that, in general, (see footnote

The rate for stabilization, often called the effective fusion rate
,
includes contributions from:
(1) fusion from the
state,
(2) radiative decay of the
into a lower state,
(3) Auger deexcitation of
,
and
(4) collisional deexciation of the complex due to interaction with
the surrounding environment.
Because of the centrifugal barrier, fusion from ** J=1** states is relatively
slow (

The collisional rotational de-exciation of the complex was first calculated
by Ostrovskii and Ustimov [153], and later by Padial, Cohen and
Walker [154]. The latter, who claim better accuracy but still
neglect the ro-vibrational transitions in the target (*i.e.,* the
surrounding) molecule, found the rates substantially smaller than the
former (by a factor of two to ten depending on the transition).

To our knowledge, there is no accurate calculation of collisional
vibrational quenching, except a rough estimate by Lane of
at room temperature [151,155], which is much
slower than other processes. However, he claims this rate increases
drastically with target temperature (for equilibrated targets) and
increasing [155], rising to the order of **10 ^{10}** s

In Faifman's calculations used in our analysis [71,72], the
rotational relaxation rate of
s** ^{-1}**, with
being the target density in units of LHD (liquid hydrogen
density), and the
effective fusion rate of
s