W.H. Aschbacher, J.-M. Barbaroux, J. Faupin, and J.-C. Guillot
Spectral theory for a mathematical model of the
weak interaction: The decay of the intermediate vector bosons
W+/-. II
(379K, pdf)
ABSTRACT. We do the spectral analysis of the Hamiltonian for the weak
leptonic decay of the gauge bosons W+/-. Using Mourre theory,
it is shown that the spectrum between the unique ground state and
the first threshold is purely absolutely continuous. Neither sharp
neutrino high energy cutoff nor infrared regularization are
assumed.