Speaker
Wouter Dekens
(INT, University of Washington)
Description
Testing the Standard Model (SM) prediction of unitarity of the Cabibbo-Kobayashi-Maskawa matrix in principle allows us to probe beyond- the-SM physics to very high energy scales. However, making the most out of these very precise measurements requires controlling theory predictions at a similar level of accuracy. In this talk, I will focus on the SM prediction for the nuclear beta decays that determine the up-down CKM element, one of the inputs to the unitarity test. I will outline how a framework based on effective field theory methods can pave the way towards well-controlled uncertainties, paying particular attention to the derivation of hadronic interactions at low energies and the required nuclear matrix elements.
Primary author
Wouter Dekens
(INT, University of Washington)
