Thomas Appelquist’s research has dealt with various aspects of theoretical high energy physics. Among his contributions are his work predicting the existence of the J/Psi particle, the formulation of the decoupling theorem in quantum field theory, the study of quantum effects in Kaluza-Klein theories, the development of the electroweak chiral lagrangian, the proposal of walking technicolor theories, the idea of universal extra dimensions, and the study of conformal symmetry in gauge field theories using lattice simulations.
He is currently conducting research on two fronts. He is continuing with the program he helped to initiate in 2008, using lattice-based numerical simulations to study strongly coupled gauge field theories that could describe new physics beyond the standard model (SM) of particle physics. The Lattice Strong Dynamics (LSD) collaboration, which he helped to form, is focusing much of its effort on dark matter candidates and new physics accessible at the LHC. He is also working with colleagues elsewhere and with Yale graduate students to develop new effective field theories inspired by the lattice simulations.
Some Recent Publications
A spartan model for the LHC diphoton excess
Strongly interacting dynamics and the search for new physics at the LHC
Thomas Appelquist, Richard C. Brower, George T. Fleming, Anna Hasenfratz, Xiao-Yong Jin, Joe Kiskis, Ethan T. Neil, James C. Osborn, Claudio Rebbi, Enrico Rinaldi, David Schaich, Pavlos Vranas, Evan Weinberg, Oliver Witzel
Phys. Rev. D 93, 114514 (2016)
Constrained Flavor Breaking
Phys. Rev. D 91, 093009 (2015)
Stealth Dark Matter: Dark scalar baryons through the Higgs portal
Thomas Appelquist, Richard C. Brower, Michael I. Buchoff, George T. Fleming, Xiao-Yong Jin, Joe Kiskis, Graham D. Kribs, Ethan T. Neil, James C. Osborn, Claudio Rebbi, Enrico Rinaldi, David Schaich, Chris Schroeder, Sergey Syritsyn, Pavlos Vranas, Evan Weinberg, Oliver Witzel
Phys. Rev. D 92, 075030 (2015)