Improved Measurement of the Positive Muon Anomalous Magnetic Moment
H. N. Brown
Abstract
A new measurement of the positive muon's anomalous magnetic moment has been made at the Brookhaven Alternating Gradient Synchrotron using the direct injection of polarized muons into the superferric storage ring. The angular frequency difference omegaa between the angular spin precession frequency omegas and the angular orbital frequency omegac is measured as well as the free proton NMR frequency omegap. These determine R = omegaa / omegap = 3.707~201(19) times 10-3. With mumu / mup = 3.183~345~39(10) this gives amu+ = 11~659~191(59) times 10-10 (pm 5 ppm), in good agreement with the previous CERN and BNL measurements for mu+ and mu-, and with the standard model prediction.
Create a lesson
Related papers
Observation of double ss production in e+e- collision at s = 3.08~GeV
BESIII Collaboration, M. Ablikim, M. N. Achasov et al.
A heterogeneous and vectorized sequence for the HL-LHC full tracking reconstruction of the CMS experiment
Emmanouil Vourliotis
Coverage Is Not Ordering: Ancillary Leakage and Representation Dependence in Covariance-Based Inference
Tommaso Dorigo
IRIS-HEP 2026 Statistical Ecosystem Blueprint White Paper
Matthew Feickert, Massimiliano Galli
Constraints on the Higgs boson total width from on-shell signal-background interference in the Hγγ decay channel with pp collisions at s=13 TeV with the ATLAS detector
ATLAS Collaboration
Status and Prospects of the HEP Statistical Inference Ecosystem
Massimiliano Galli