His main research interests include particle physics and cosmology, physics beyond the Standard Model, dark matter in the universe, and New Physics at the Large Hadron Collider (LHC). Recently he has been named chairman of the International Symposium on Particles, Strings and Cosmology (PASCOS2018), Cleveland, June 4-8, 2018, convener of the particle physics session, 2017 TeV Particle Astrophysics conference (TeVPA 2017), Columbus, Ohio, USA. and chairman of the 2017 International Workshop on Lepton and Baryon Number Violation (BLV2017), Case Western Reserve University, Cleveland, OH, USA.