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Thursday 11 February 2021, 16:00-17:00
Consistency of the Standard Model Effective Field Theory
- đ¤ Speaker: Nicholas Rodd (UC Berkeley)
- đ Date & Time: Thursday 11 February 2021, 16:00 - 17:00
- đ Venue: Virtual Seminar
Abstract
The seminar will take place via Zoom here.
Abstract: In this talk I will describe how the analytic structure of scattering amplitudes impose non-trivial constraints on the standard model effective field theory (SMEFT). For example, in the bosonic sector, I will explain how the bounds imply restrictions on the size of certain CP-odd operators by associated CP-even couplings. This result can be exploited to reveal a connection between constraints derived at colliders and limits on the neutron electric dipole moment. Further, I will demonstrate that in the fermionic sector, IR consistency requires that flavour violating operators are bounded by the flavour conserving variants. While most results will be presented for the SMEFT at dimension 8, I will also describe recent progress allowing a subset of the results to be lifted to dimension 6.
Series This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.
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