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

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Three ways to determine the higgs boson mass:Pole Mass:◮ Fits to the Higgs propagator◮ Describe the unstable nature perturbatively or ignore itCorrelator Mass:◮ fits to the temporal correlation function at large t◮ at very large t, dominated by two goldstonesResonance analysis:◮ (Rigorously) calculate δ(k) below inelastic threshold◮ Need to explictly break the symmetry to get m G ∼ m H /3◮ Much more difficult! However, can obtain Γ(H → GG)
1.21HiggsPropagatormaxP1.00Correlator from separate analysis of observable HiggsCorrelator0.001χ 2 /dof = 0.02χ 2 /dof = 0.000.8Propagator0.60.4〈ht1ht2〉0.2000.20.40.60.810.0001051015202530354045ˆp 2∆t = t2 − t1Masses from the propagator and correlator:◮ Example: L s /a = 24 = L t /(2a), m t = 195GeV, Λ = 1.5TeV◮ Fits to the higgs propagator (left): m H = 96.0(4.3)GeV◮ Fits to the higgs temporal correlation function(right):m H = 96.4(6.9)GeV
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 and 14: UV fixed point is trivial: cutoff c
Page 15 and 16: History of Higgs-Yukawa models on t
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: Unstable states in F.V.If ‘alone
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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