John N. Ng

Supersymmetric b→sγ with large chargino contributions

Supersymmetric (SUSY) theories are often thought to give large branching ratios for

Minimal schemes for large neutrino mixings with inverted hierarchy

b \rightarrow s \gamma

Constraints on New Scalars from the LHC 125 GeV Higgs Signal

from charged Higgs loops. We show that in many cases chargino loop contributions can cancel those of the Higgs, and SUSY can give

Testing radiative neutrino mass generation at the LHC

B(b \rightarrow s \gamma)

Unconventional neutrino mass generation, neutrinoless double beta decays, and collider phenomenology

at or below the \SM\ prediction. We show this occurs because the large stop mass splittings usually found in SUSY break a GIM mechanism suppression. These effects are strongly enhanced by large

Astrophysical implications of the induced neutrino magnetic moment from large extra dimensions

\tan\beta

Neutrino number asymmetry and cosmological birefringence

, so that

New tests of lepton number violation at electron-electron colliders

B(b \rightarrow s \gamma)

Lepton flavor violation in extra dimension models

is very sensitive to the value of

Search for heavy right-handed neutrinos at the LHC and beyond in the same-sign same-flavor leptons final state

\tan\beta