# ICHEP 2020

July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

## Muon g-2 beam and spin systematic effects for Run-1

Jul 28, 2020, 4:45 PM
15m
virtual conference

#### virtual conference

Talk 12. Operation, Performance and Upgrade of Present Detectors

### Speaker

Dr Sudeshna Ganguly (University of Illinois at Urbana-Champaign)

### Description

The muon g-2 Experiment at Fermilab measures the anomalous magnetic moment, $a_\mu$, with improved precision compared to the previous experiment at Brookhaven National Lab.
The greater than 3 standard deviations difference between Standard Model prediction and the previous BNL, $a_\mu$, measurement hints at the possibility of new physics. Positive polarized muons are circulated in the storage ring and the experiment precisely determines the muon anomalous precision frequency, $\omega_a$, (spin precession relative to momentum). The $\omega_a$ is determined from calorimeter measurements of decay positron time and energy. The experiment also needs to precisely determine the average magnetic field seen by the muons, which is based on continuous NMR probe measurements. A detailed understanding of beam and spin systematic effects is required for the precise determination of $\omega_a$. This talk gives a review of the beam and spin systematic effects that are significant for determination of $\omega_a$ in the 2018 Run-1 analysis.

### Primary author

Dr Sudeshna Ganguly (University of Illinois at Urbana-Champaign)

### Presentation materials

 ICHEP_beamdynamics_Sudeshna.key ICHEP_beamdynamics_Sudeshna.pdf