Yongchao Zhang

Quark seesaw, vectorlike fermions and diphoton excess

A bstractWe present a possible interpretation of the recent diphoton excess reported by the early s=13

Probing the Higgs Sector of the Minimal Left-Right Symmetric Model at Future Hadron Colliders

\sqrt{s}=13

Long Lived Light Scalars as Probe of Low Scale Seesaw Models

TeV LHC data in quark seesaw left-right models with vectorlike fermions proposed to solve the strong CP problem without the axion. The gauge singlet real scalar field responsible for the mass of the vectorlike fermions has the right production cross section and diphoton branching ratio to be identifiable with the reported excess at around 750 GeV diphoton invariant mass. Various ways to test this hypothesis as more data accumulates at the LHC are proposed.

Displaced photon signal from a possible light scalar in minimal left-right seesaw model

We discuss a simple non-supersymmetric model based on the electroweak gauge group

Heavy right-handed neutrino dark matter in left-right models

SU(2)_L\times SU(2)^\prime\times U(1)_{B-L}

Supernova Constraints on Massive (Pseudo)Scalar Coupling to Neutrinos

where the lightest of the right-handed neutrinos, which are part of the leptonic doublet of

CP violation effects in the diphoton spectrum of heavy scalars

SU(2)^\prime

Interference Effect on Resonance Studies in Searches of Heavy Particles

, play the role of a long-lived unstable dark matter with mass in the multi-PeV range. We use a resonant