On The Nature Of The Higgs Boson

Sur la nature du boson de Higgs

Damiano Anselmi (1)

1 Dipartimento di Fisica dell'Università di Pisa and INFN

Several particles are not observed directly, but only through their decay products. We consider the possibility that they might be fakeons, i.e. fake particles, which mediate interactions but are not asymptotic states. A crucial role to determine the true nature of a particle is played by the imaginary parts of the one-loop radiative corrections, which are affected in nontrivial ways by the presence of fakeons in the loop. The knowledge we have today is sufficient to prove that most non directly observed particles are true physical particles. However, in the case of the Higgs boson the possibility that it might be a fakeon remains open. The issue can be resolved by means of precision measurements in existing and future accelerators.

Mots clés: Higgs boson; Fakeons; Standard model; Particle accelerators

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]; Physique des Hautes Energies - Théorie [hep-th]; Physique des Hautes Energies - Expérience [hep-ex]

Damiano Anselmi. On The Nature Of The Higgs Boson. 2018. ⟨hal-01911950⟩