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High Energy Physics Seminar

Monday, April 15, 2024
4:00pm to 5:00pm
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Online and In-Person Event
Flavorful New Physics and Wrinkles in the Froggatt-Nielsen Mechanism
Sam Homiller, Harvard University,

Solutions to the Standard Model (SM) flavor puzzle, such as horizontal symmetries, typically involve dynamics at scales far above a TeV. However, when these solutions are invoked to explain the SM masses and mixing angles, they also determine the pattern of couplings to any flavorful new physics. These Ansatz can be effectively tracked using spurions of the SM flavor group. Additional symmetries or dynamics in the UV may change these patterns, but a broad class of these departures, which we call wrinkles can be encoded in the same effective field theory framework, maintaining a level of predictivity for disparate flavor observables. In this talk, I'll introduce this framework, discuss examples of how these wrinkles can arise in UV models, and study an example of the possible phenomenology in experiments using an example of the SM extended by a scalar leptoquark.

The talk is in 469 Lauritsen.

Contact [email protected] for Zoom link.