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IAS PROGRAM ON PARTICLE THEORY
The Higgs Trilinear Coupling and the Scale of New Physics
Prof. Spencer CHANG, University of Oregon
Date : 23 May 2019 (Thursday)
Time : 2:00 pm
Venue : IAS2042, 2/F, Lo Ka Chung Building, Lee Shau Kee Campus, HKUST

Abstract

Measuring the Higgs trilinear coupling is one of the most important physics drivers of the high-luminosity LHC and future colliders given its insight into the mechanism of electroweak symmetry breaking. After a review of proposed collider probes for this interaction, the speaker will demonstrate how a nonstandard value for this coupling predicts unitarity violation at high energies. Depending on the theoretical assumptions, this occurs at energies above 5-13 Tera Electron Volts (TeV) for an order one trilinear modification. This gives a model-independent argument for the energy scale where new physics has to appear by motivating an energy target for future colliders.


About the program

For more information, please refer to the program website at http://iasprogram.ust.hk/particle_theory.

HKUST Jockey Club Institute for Advanced Study
Enquiries: ias@ust.hk / 2358 5912
http://ias.ust.hk

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