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

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The 4G is dead:◮ Direct searches: ATLAS, CMS most stringent bound∼ 450GeV in t ′ → bW, b ′ → tW.◮ Higgs boson production: Enhancement of σ H◮ Precision flavor observables: e.g sin2β s (LHCb). In 4Gsin2β s ∼ −0.33 (Hou, Ma ‘10)
The 4G is not dead:◮ Most stringent direct searches assume e.g.B(t ′ → bW) = 100%.◮ (Cetin, et al ‘11): Really should considerB(pp → H)×B(H → X)◮ (Lenz, et al ‘11): V CKM4×4 ≠ 1, l 4 really complicate things!Limits as a function of the mixing angles. (CKMFitter)SM3BR)10Fourth family neutrino with mass 45 GeV+ -(Dirac) (Majorana) gg→ H → W W , ZZ, ff(Dirac) (Majorana) gg→ H → γγ0.30-3×10p-value1.0/ σ×SM4(σ×BR)1BR(B → τν)0.250.200.150.100.90.80.70.60.50.40.3-110110 120 130 140 150 160 170 180 190 200Higgs boson mass [GeV]0.05CKM f i t t e rSummer 110.000.5 0.6 0.7 0.8 0.9 1.0sin 2β0.20.10.0
Page 1 and 2: A lattice Higgs-Yukawa Model with O
Page 3 and 4: Collaborators:◮ DESY-Zeuthen, Ger
Page 5: Motivation◮ A heavy 4th gen. of q
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 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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