VIRTUAL MEETING ONLY: CPC Seminar: The Tiny (g-2) Muon Wobble from Small-μ Supersymmetry

  • April 19, 2021, 2:00 pm US/Central

Speaker: Carlos Wagner, Argonne National Laboratory

Abstract: A new measurement of the muon anomalous magnetic moment has been recently reported by the Fermilab Muon g-2 collaboration and shows a 4.2σ departure from the most precise and reliable calculation of this quantity in the Standard Model. Assuming that this discrepancy is due to new physics, I will discuss its relation with other potential anomalies, especially in the muon sector, as well as clues from the early universe. I will then concentrate on a simple supersymmetric model that also provides a dark matter explanation. I will show results for an interesting region of supersymmetric parameter space, located in the proximity to the so-called blind spots for Dark Matter direct detection, that can be probed at the high luminosity LHC and future colliders, while leading to values of (gμ − 2) consistent with the Fermilab and Brookhaven (gμ − 2) measurements. Such a parameter region can simultaneously realize a Bino-like dark matter candidate compatible with direct detection constraints for small to moderate values of the Higgsino mass parameter |μ|.

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