Improved measurement of the positive muon anomalous magnetic moment - art.no. 091101

Citation
Hn. Brown et al., Improved measurement of the positive muon anomalous magnetic moment - art.no. 091101, PHYS REV D, 6209(9), 2000, pp. 1101
Citations number
16
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6209
Issue
9
Year of publication
2000
Database
ISI
SICI code
0556-2821(20001101)6209:9<1101:IMOTPM>2.0.ZU;2-8
Abstract
A new measurement of the positive muon's anomalous magnetic moment has been made at the Brookhaven Alternating Gradient Synchrotron using the direct i njection of polarized muons into the superferric storage ring. The angular frequency difference omega (a) between the angular spin precession frequenc y omega (s) and the angular orbital frequency omega (c) is measured as well as the free proton MMR frequency omega (p). These determine R = omega (a)/ omega (p) = 3.707 201(19) x 10(-3). With mu (mu)/mu (p) = 3.183 345 39(10) this gives a(mu+) = 11 659 191(59) x 10-(10) (+/-5 ppm), in good agreement with the previous CERN and BNL measurements for mu (+) and mu (-), and with the standard model prediction.