Date/Time: Wed Nov 04 2026 at 13:00<br/><br/>Location: Theory Room (MOB220)<br/><br/>Speaker: Pedro Bittar (Perimeter Institute)<br/><br/>Title: Dark Energy and Neutrino Flavor from the Weak Axion<br/><br/>Abstract: We propose that dark energy may arise from a weak axion associated with the anomalous B+L symmetry of the Standard Model. Its potential is generated by two distinct Weinberg operators, with a lepton-flavor selection rule removing the leading radiative and thermal contributions. The resulting potential has an amplitude close to the observed dark-energy density, connecting neutrino observables to the dynamics of late-time quintessence.
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Remote Connection:
https://ubc.zoom.us/j/62535266430?pwd=THVrUzhMdjAyVkNnM05OUWRZYUppZz09
Meeting ID: 625 3526 6430
Passcode: 307647<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/>