New Measurement of the Anomalous Magnetic Moment of the Positive Muon

1999 ◽  
Vol 82 (8) ◽  
pp. 1632-1635 ◽  
Author(s):  
R. M. Carey ◽  
W. Earle ◽  
E. Efstathiadis ◽  
M. F. Hare ◽  
E. S. Hazen ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Positive Muon

scholarly journals Improved measurement of the positive muon anomalous magnetic moment

2000 ◽  
Vol 62 (9) ◽  
Author(s):  
H. N. Brown ◽  
G. Bunce ◽  
R. M. Carey ◽  
P. Cushman ◽  
G. T. Danby ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Positive Muon ◽  
Muon Anomalous Magnetic Moment

scholarly journals Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm

2021 ◽  
Vol 126 (14) ◽  
Author(s):  
B. Abi ◽  
T. Albahri ◽  
S. Al-Kilani ◽  
D. Allspach ◽  
L. P. Alonzi ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Positive Muon ◽  
Muon Anomalous Magnetic Moment

scholarly journals Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm

2002 ◽  
Vol 89 (10) ◽  
Author(s):  
G. W. Bennett ◽  
B. Bousquet ◽  
H. N. Brown ◽  
G. Bunce ◽  
R. M. Carey ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Positive Muon ◽  
Muon Anomalous Magnetic Moment

scholarly journals Precise Measurement of the Positive Muon Anomalous Magnetic Moment

2001 ◽  
Vol 86 (11) ◽  
pp. 2227-2231 ◽  
Author(s):  
H. N. Brown ◽  
G. Bunce ◽  
R. M. Carey ◽  
P. Cushman ◽  
G. T. Danby ◽  
...  
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Precise Measurement ◽  
Positive Muon ◽  
Muon Anomalous Magnetic Moment

The Anomalous Magnetic Moment of the Muon

2003 ◽  
Vol 18 (supp01) ◽  
pp. 215-272 ◽  
Author(s):  
Vernon W. Hughes ◽  
Ernst P. Sichtermann
Keyword(s):  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Precise Measurement ◽  
New Physics ◽  
Positive Muon ◽  
Standard Theory ◽  
Experimental Uncertainty ◽  
G Value ◽  
Good Agreement

A precise measurement of the anomalous g value, a = (g - 2)/2, for the positive muon has been made at the Brookhaven Alternating Gradient Synchrotron. The result aμ+ = 11 659 202(14)(6) × 10-10 (1.3 ppm) is in good agreement with previous measurements and has an error one third that of the combined previous data. The measurement tests standard theory and has the potential to discover new physics. The analysis of data collected in 2000 and 2001 is well underway and, when combined with data from a requested and final run in the fall of 2002 and winter of 2003, are expected to reduce the experimental uncertainty on aμ to 0.4 ppm.

scholarly journals Two and three pseudoscalar production in e+e− annihilation and their contributions to (g − 2)μ

2021 ◽  
Vol 2021 (3) ◽  
Author(s):  
Wen Qin ◽  
Ling-Yun Dai ◽  
Jorge Portolés
Keyword(s):  
Experimental Data ◽  
Theoretical Prediction ◽  
Pseudoscalar Meson ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Vacuum Polarization ◽  
Meson Production ◽  
The Other ◽  
Joint Analysis ◽  
The Standard Model

Abstract A coherent study of e+e− annihilation into two (π+π−, K+K−) and three (π+π−π0, π+π−η) pseudoscalar meson production is carried out within the framework of resonance chiral theory in energy region E ≲ 2 GeV. The work of [L.Y. Dai, J. Portolés, and O. Shekhovtsova, Phys. Rev. D88 (2013) 056001] is revisited with the latest experimental data and a joint analysis of two pseudoscalar meson production. Hence, we evaluate the lowest order hadronic vacuum polarization contributions of those two and three pseudoscalar processes to the anomalous magnetic moment of the muon. We also estimate some higher-order additions led by the same hadronic vacuum polarization. Combined with the other contributions from the standard model, the theoretical prediction differs still by (21.6 ± 7.4) × 10−10 (2.9σ) from the experimental value.

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