Joint Laboratory Seminar

Date and Time: Thursday, 31 August 2017, at 3:00 PM

Venue: Conference Hall, Dzhelepov Laboratory of Nuclear Problems

Seminar topic: «The Muon g-2 Experiment at Fermilab»

Speaker: W. Gohn (Univ. of Kentucky) (Freiburg and CERN)

Abstract: A new measurement of the anomalous magnetic moment of the muon, aμ≡(g−2)/2, will be performed at the Fermi National Accelerator Laboratory with data taking beginning in 2017. The most recent measurement, performed at Brookhaven National Laboratory and completed in 2001, shows a 3.5 standard deviation discrepancy with the standard model prediction of aμ. The new measurement will accumulate 21 times those statistics using upgraded detection and storage ring systems, enabling a measurement of aμ to 140 ppb, a factor of 4 improvement in the uncertainty of the previous measurement. This improvement in precision, combined with recent and ongoing improvements in the evaluation of the QCD contributions to the aμ, could provide a 7.5σ discrepancy from the standard model if the current difference between experiment and theory is confirmed, a possible indication of new physics.