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

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Main ResultsHiggs mass lower bound:◮ Numerical data increasesw/ m q (blue points)◮ Trend suggested byminimizing the LO eff.100potential. (black line)200 400 600Thermalphasetransition(preliminary):m qT c0GeV 350GeV175GeV 500GeV650GeV 1000GeV1000900800700600low 500m H (GeV)400χ504540353025201510503002000.29Λ = 1.5TeV0.295(GeV) m t0.3κL=16fit to L=16L=20fit to L=20L=24fit to L=240.3050.31
IntroductionExamine the Higgs-Yukawa sector of the standard model:L = L φ +L FL φ = 1 ∑|∂ µ φ| 2 + 1 2 2 m2 0|φ| 2 +λ|φ| 4L F =µN f ∑i=1= ∑ i¯ψ i /∂ψ i +y b ¯ψ i L φbi R +y t ¯ψ i L˜φt i R +h.c.¯ψ i M[φ]ψ i◮ Complex scalar φ is a 2 of SU(2) L◮ Fermion doublet ψ = ( tb). ψL is a 2 of SU(2) L◮ NO GAUGE FIELDS!! ⇒ GLOBAL SU(2) L symmetry
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: Two questions we will ask:◮ How d
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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