Colliding light, tau g–2, and broadband axion detection

Experimental Particle Physics seminar

Colliding light, tau g–2, and broadband axion detection

Event details

The muon anomalous magnetic moment (g–2) exhibits tantalising tensions with the Standard Model. But what about tau g–2? Remarkably, tau g–2 remains poorly constrained but can be 280 times more sensitive to new physics than the muon. Recently, ATLAS and CMS announced groundbreaking measurements of tau g–2 competitive with LEP. These exploit the landmark observation of tau pairs created via photon collisions in LHC heavy-ion data. Beyond colliders, limitations with existing axion searches motivate the Broadband Reflector Experiment for Axion Detection (BREAD) proposal at Fermilab. Quantum sensing progress enables BREAD to open multi-decade discovery sensitivity to axion dark matter above microwave frequencies that has long eluded conventional haloscopes. BREAD uses interdisciplinary innovations across astronomy, particle physics, and quantum technology.

About Experimental Particle Physics seminars

The experimental particle physics seminar series invites speakers from all over Europe to discuss the latest developments at the LHC, accelerator and non-accelerator based neutrino physics, hardware R&D and astroparticle physics. .

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