Events

Physics Department Colloquia

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Events During the Week of October 23rd through October 30th, 2022

Monday, October 24th, 2022

No events scheduled

Tuesday, October 25th, 2022

No events scheduled

Wednesday, October 26th, 2022

No events scheduled

Thursday, October 27th, 2022

No events scheduled

Friday, October 28th, 2022

The seemingly-anomalous magnetic moment of the muon - a novel reconciliation with the Standard Model and connection with Dark Matter
Time: 3:30 pm - 6:00 pm
Place: 2241 Chamberlin Hall
Speaker: Glennys Farrar, NYU
Abstract: Precision measurement of the magnetic moment of the muon yields a result 4.2 sigma above the prediction of the Standard Model. At the same time, the lattice QCD calculation of the “hadronic vacuum polarization” — essentially, a weighted integral of the cross section for e+e- -> hadrons — disagrees with the direct experimental measurement at a similar level. I will propose that both discrepancies can be explained, quite naturally, by production of unseen final states in e+e- -> hadrons. Such so-far-undiscovered hadrons have to be neutral and long-lived to have escaped detection, and in fact could be the Dark Matter particle. I will discuss tests of this proposal.
Host: Lu Lu
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