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Title: Muon g-2 Experiment at Fermilab

A new experiment at Fermilab will measure the anomalous magnetic moment of the muon with a precision of 140 parts per billion (ppb). This measurement is motivated by the results of the Brookhaven E821 experiment that were first released more than a decade ago, which reached a precision of 540 ppb. As the corresponding Standard Model predictions have been refined, the experimental and theoretical values have persistently differed by about 3 standard deviations. If the Brookhaven result is confirmed at Fermilab with this improved precision, it will constitute definitive evidence for physics beyond the Standard Model. The experiment observes the muon spin precession frequency in flight in a well-calibrated magnetic field; the improvement in precision will require both 20 times as many recorded muon decay events as in E821 and a reduction by a factor of 3 in the systematic uncertainties. This paper describes the current experimental status as well as the plans for the upgraded magnet, detector and storage ring systems that are being prepared for the start of beam data collection in 2017.
Authors:
 [1]
  1. Regis Univ., Denver, CO (United States)
Publication Date:
OSTI Identifier:
1226328
Report Number(s):
FERMILAB-CONF--15-402-E
arXiv eprint number arXiv:1510.00346; TRN: US1700238
DOE Contract Number:
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: 12. Conference on the Intersections of Particle and Nuclear Physics, Vail, CO (United States), 19-24 May 2015
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 43 PARTICLE ACCELERATORS; FERMILAB; MUONS; STANDARD MODEL; STORAGE RINGS; ACCURACY; MAGNETS; MAGNETIC MOMENTS; SPIN; RADIATION DETECTORS; PRECESSION; EXPERIMENT DESIGN