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 is assumed.
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Communicated by Volker Bach.
In memory of Pierre Duclos
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Aschbacher, W.H., Barbaroux, JM., Faupin, J. et al. Spectral Theory for a Mathematical Model of the Weak Interaction: The Decay of the Intermediate Vector Bosons W ±, II. Ann. Henri Poincaré 12, 1539–1570 (2011). https://doi.org/10.1007/s00023-011-0114-3
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DOI: https://doi.org/10.1007/s00023-011-0114-3