Measurement of the muon anomalous precession frequency $$\omega_a$$ in the Fermilab $g-2$ experiment
The Fermilab Muon $g-2$ Experiment was designed to measure the muon's anomalous magnetic moment $$a_{\mu} = (g-2)/2$$ to 140 parts per billion. The value of $$a_{\mu}$$ is proportional to the difference frequency $$\omega_a=\omega_s-\omega_c$$ between the muon's cyclotron frequency and spin precession frequency in the uniform magnetic field of the $g-2$ storage ring. The frequency $$\omega_a$$ is extracted from the time distribution of the mu-decay positrons recorded by 24 electromagnetic calorimeters positioned around the inner circumference of the storage ring. We will discuss the various approaches to the frequency determination including the reconstruction, fitting of time distributions, and procedures for handling the effects of gain changes, positron pileup and beam dynamics. We also discuss the data consistency checks and the strategy for the averaging of $$\omega_a$$ across the different analyses.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 2318659
- Report Number(s):
- FERMILAB-CONF-23-0640-PPD; oai:inspirehep.net:2758901
- Conference Information:
- Journal Name: PoS Journal Volume: EPS-HEP2023
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the anomalous precession frequency in the Muon $g-2$ experiment at Fermilab
Measurement of the anomalous spin precession frequency $\omega_\alpha$ in the Muon g-2 experiment at Fermilab
Measuring the Precession Frequency in the E989 Muon g – 2 Experiment
Thesis/Dissertation
·
Mon Feb 28 23:00:00 EST 2022
·
OSTI ID:3005867
Measurement of the anomalous spin precession frequency $\omega_\alpha$ in the Muon g-2 experiment at Fermilab
Conference
·
Thu Jan 02 23:00:00 EST 2025
· PoS
·
OSTI ID:2563145
Measuring the Precession Frequency in the E989 Muon g – 2 Experiment
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 2018
·
OSTI ID:1515050