Date/Time: Thu Nov 28 2024 at 14:00<br/><br/>Location: Auditorium/Remote<br/><br/>Speaker: Wouter Dekens (INT)<br/><br/>Title: Effectively probing beyond the Standard Model<br/><br/>Abstract: The search for beyond-the-Standard-Model physics (BSM) involves experiments at a wide variety of energy scales, ranging from high-energy collider probes to precision measurements at low energies. The latter include searches for electric dipole moments, neutrinoless double beta decay, and precision measurements of beta decays. Although these low-energy experiments can often be even more sensitive to BSM physics than collider processes, their interpretation is complicated by hadronic and nuclear effects due to the strong interaction. In this talk, I will discuss how effective field theories can help tackle these theoretical challenges. After outlining how they allow us to describe a wide variety of processes in a unified framework, I will illustrate what this can tell us about BSM physics.
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Remote Connection:
https://ubc.zoom.us/j/69625289505?pwd=gaTs6XNYmU8986HOeSb7UiUmBwK4jD.1
Meeting ID: 696 2528 9505
Passcode: 718844
<br/><br/>.<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>Date/Time: Wed Nov 27 2024 at 12:30<br/><br/>Location: Theory Room/Remote<br/><br/>Speaker: Wouter Dekens (INT)<br/><br/>Title: Scrutinizing the Cabibbo Angle Anomaly<br/><br/>Abstract: Recent developments have revealed a discrepancy between the measurements of the elements of the Cabibbo-Kobayashi-Maskawa matrix and the unitarity relation predicted by the Standard Model (SM). This so-called Cabibbo-Angle Anomaly (CAA) could point to new physics or be due to underestimated uncertainties in the SM description. To investigate the latter option, I will focus on the SM prediction of neutron and nuclear beta decays, which determine the CKM element Vud. I will outline how a framework based on effective field theory methods can pave the way toward well-controlled uncertainties, once combined with many-body calculations. In the second part of the talk, I will explore the possibility that the CAA is due to beyond-the-SM physics. I will describe a model-independent analysis that takes into account a variety of measurements, ranging from low-energy experiments to collider probes, and illustrate the simplest new-physics scenarios that can explain the CAA.
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Remote Connection:
https://ubc.zoom.us/j/62535266430?pwd=THVrUzhMdjAyVkNnM05OUWRZYUppZz09
Meeting ID: 625 3526 6430
Passcode: 307647
<br/><br/>Note special time!<br/><br/>______________________________<br/><br/>Detailed information available can be found at <a href='https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures'>https://www.triumf.ca/research-program/lectures-conferences/upcoming-seminars-lectures</a> <br/><br/>