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Research Spending & Results

Award Detail

Doing Business As Name:University of Kentucky Research Foundation
  • Bradley Plaster
  • (859) 257-3960
Award Date:11/15/2017
Estimated Total Award Amount: $ 184,863
Funds Obligated to Date: $ 57,918
  • FY 2018=$57,918
Start Date:11/15/2017
End Date:10/31/2020
Transaction Type:Grant
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.049
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:Methods for Data Analysis and Systematic Corrections in the Fermilab E989 Muon g-2 Experiment
Federal Award ID Number:1714014
DUNS ID:939017877
Parent DUNS ID:007400724
Program Officer:
  • Allena Opper
  • (703) 292-8958

Awardee Location

Street:109 Kinkead Hall
Awardee Cong. District:06

Primary Place of Performance

Organization Name:University of Kentucky Research Foundation
Street:500 S Limestone 109 Kinkead Hall
Cong. District:06

Abstract at Time of Award

This award supports data taking and analysis as well as calculations that will enable the precise measurement of the muon's magnetic properties and thereby test the Standard Model of Particles and Interactions. Muons are subatomic particles that are like electrons but are about 200 times more massive. Past measurements of the muon's magnetic moment, a fundamental property that quantifies how it interacts with magnetic fields, disagree with predictions of the Standard Model. The experiment will take place at the Fermi National Accelerator Laboratory (Fermilab) and use muons moving at nearly the speed of light and confined in a circular storage ring using magnetic fields and electric fields. Extracting the muon's magnetic moment from the data will require corrections to account for variations in the magnetic fields through which the muons pass. Methods for these corrections will be developed under this award. In addition to the training of a graduate student in forefront experimental and data analysis techniques, this project will also connect students from local public high schools interested in the physical sciences with fundamental physics research, via the mentoring of junior- and senior-level students in capstone research projects. A high-precision comparison of measurements and theoretical calculations of the muon's anomalous magnetic moment constitutes a test of the completeness of the Standard Model. In the Brookhaven E821 experiment, which completed data taking in 2001, the muon's anomalous magnetic moment was measured to a precision of 0.54 parts-per-million (ppm). The result from that experiment lies some tantalizing ~3.5 standard deviations from the Standard Model theoretical value. In the Fermilab E989 experiment, which began data taking in 2017, the precision on the anomalous magnetic moment will be improved by nearly a factor of four to the level of 0.14 ppm, thus presenting the possibility for a definitive claim of evidence for new physics, provided the experimental and theoretical central values do not change significantly. In the experiment, relativistic "magic momentum" muons will be stored and subsequently undergo cyclotron orbits within a 1.45 Tesla superconducting magnetic storage ring, with electric fields employed for confinement. This award supports work on systematic corrections to the muon's cyclotron and spin precession frequencies, the difference of which is proportional to the anomalous magnetic moment, resulting from muon transport through the small non-uniformities in the magnetic fields inevitably present over the volume of the storage ring and the magnetic fields resulting from the muons' relativistic motion through the electric fields. Methods for modeling and simulating these systematic effects will be developed by the PI and a graduate student under this award.

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