A lattice Higgs-Yukawa Model with Overlap Fermions - Lattice Seminar

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Vacuum instability (lower) bound on m H (e.g. Elias-Miro, et al.‘11): Demand that Eff. potential ’curves up’.For φ 4 , bounds occur at λ = 0,∞.Higgs boson mass bounds [GeV ]700600500400300200100Higgs boson mass bounds [GeV]1000800600400200m t ′ = 676 ± 22 GeV05001000 1500 2000 2500Cutoff Λ [GeV ]3000015002000 2500 3000Cutoff Λ [GeV]3500(Gerhold, Kallarackal, Jansen ‘10)
History of Higgs-Yukawa models on the lattice◮ (Quenched) Naive fermions (Bock, et al. ‘89) : Doublers!!!◮ Wilson fermions (Smit ’86)(Swift ’84): Wilson term breakschiral symmetry.◮ Mirror fermions (e.g. Lin et al. ‘92): Tuning required todecouple mirror fermions.◮ Overlap! (Lusher ‘98): Exact chiral symmetry at finite a.
Page 1 and 2: A lattice Higgs-Yukawa Model with O
Page 3 and 4: Collaborators:◮ DESY-Zeuthen, Ger
Page 5 and 6: Motivation◮ A heavy 4th gen. of q
Page 7 and 8: The 4G is not dead:◮ Most stringe
Page 9 and 10: Two questions we will ask:◮ How d
Page 11 and 12: IntroductionExamine the Higgs-Yukaw
Page 13: UV fixed point is trivial: cutoff c
Page 17 and 18: Examine the free naive Fermion Prop
Page 19 and 20: Introduce pseudo-fermion fields ω.
Page 21 and 22: Preconditioning : Assume SSB ansatz
Page 23 and 24: Set the scale using v phys = 246GeV
Page 25 and 26: 0.25TopBarTopCorrChiralLeftHandedGa
Page 27 and 28: OutlineMotivation/IntroductionHiggs
Page 29 and 30: Unstable states in F.V.If ‘alone
Page 31 and 32: 1.21HiggsPropagatormaxP1.00Correlat
Page 33 and 34: Perturbative CalculationsUse the sa
Page 35 and 36: 1000800700upper boundlower bound (p
Page 37 and 38: Electroweak baryongenisisWe live in
Page 39 and 40: Finite T transition(Kikukawa, et al
Page 41: ConclusionsEffects of a Heavy Fermi

A lattice Higgs-Yukawa Model with Overlap Fermions - Lattice Seminar

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