2000 character limit reached
Diphoton excess at 750 GeV: Singlet scalars confront triviality
Published 21 Dec 2015 in hep-ph | (1512.06508v2)
Abstract: We suggest that the recently observed diphoton excess at 750 GeV comes from a quasi-degenerate bunch of gauge singlet scalars produced and decaying through one or more vector-like fermions. This explains the broad nature of the resonance, even though the decay is loop-mediated. At the same time, the model keeps the new Yukawa couplings in the perturbative region, which is necessary for the stability of the potential.
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