2:1 for Naturalness at the LHC?

摘要: A large enhancement of a factor 1.5 - 2 in Higgs production and decay the diphoton channel, with little deviation ZZ can only plausibly arise from loop new charged particles couplings to Higgs. We show that, allowing fermions marginal interactions at weak scale, required Yukawa for are so that quartic coupling is pushed negative values UV, triggering an unacceptable vacuum instability far beneath 10 TeV scale. An by be accommodated if lighter than 150 GeV, within reach discovery almost all cases 8 TeV run LHC, even most difficult 14 TeV. Thus survives further scrutiny, no 150 GeV found, there must bosons This would unambiguously rule out class fine-tuned theories physics beyond Standard Model, including split SUSY many its variants, provide strong circumstantial evidence natural theory electroweak symmetry breaking TeV Alternately, single additional scalars or gauge up cutoff much larger predict hints current data will disappear.