Have we observed the Higgs (imposter)? Signal may not be standard model Higgs boson after all
from Digital Journal
paper posted on arXiv
, a trio of physicists are interpreting the new "Higgs-like" particle as a CP-even scalar and investigate its electroweak quantum number. They show that the LHC data gathered heretofore already strongly disfavors both the dilatonic and nondilatonic singlet imposters. Relying on custodial
symmetry constructions, they argue that the new particle could very well be a part of the Higgs triplet rather than the usual Higgs doublet. But they emphasize that more precise measurements of the ratio of event rates in the WW over ZZ channels, as well as the event rates in bb and tau tau channels, are needed to distinguish the Higgs doublet from the triplet imposter.
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