Chuan-Hung Chen

Higgs singlet boson as a diphoton resonance in a vectorlike quark model

ATLAS and CMS recently show the first results from run 2 of the Large Hadron Collider (LHC) at

Forward-backward asymmetry of the top quark in diquark models

\sqrt{s}=13

Unparticle physics effects on direct CP violation

TeV. A resonant bump at a mass of around 750 GeV in the diphoton invariant mass spectrum is indicated and the corresponding diphoton production cross section is around 3-10 fb. Motivated by the LHC diphoton excess, we propose that the possible resonance candidate is a Higgs singlet. To produce the Higgs singlet via gluon-gluon fusion process, we embed the Higgs singlet in the framework of vector-like triplet quark (VLTQ) model. As a result, the Higgs singlet decaying to diphoton final state is via VLTQ loops. Using the enhanced number of new quarks and new Yukawa couplings of the VLTQs and Higgs singlet, we successfully explain the diphoton production cross section. We find that the width of the Higgs singlet is below 1 GeV, its production cross section can be of order of 1 pb at

Perturbative QCD analysis of B ->phi K decays and power counting

\sqrt{s}=13

Final-state interaction and B → KK decays in perturbative QCD

TeV, and the branching ratio for it decaying to diphoton is around

Nonfactorizable contributions to B meson decays into charmonia

0.017

Lepton asymmetries in heavy baryon decays of Λb→Λl+l−

and is insensitive to the masses of VLTQs and new Yukawa couplings. We find a strong correlation between the Higgs Yukawa couplings to

Forward-backward asymmetry of top quark in unparticle physics

s

Double neutral Higgs production in the two-Higgs doublet model at the LHC

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Lepton angular asymmetries in semileptonic charmful B decays

b