The BNL g-2 Experiment: A Virtual Probe of the Standard Model

Details The BNL g-2 Experiment: A Virtual Probe of the Standard Model The BNL g-2 Experiment: A Virtual Probe of the Standard Model

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apr.c5003c&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

The Brookhaven g-2 experiment to measure the anomalous magnetic moment of the muon has accumulated over 10 billion decays from both polarities of the muon. A superferric storage ring shimmed to 1 ppm, superconducting inflector, electrostatic quadrupoles, and scintillating fiber calorimeters represent state-of-the-art engineering for a precision experiment whose sensitivity to new physics rivals high energy colliders. The result from the 1999 data set with 1.3 ppm precision in the anomaly showed a 2.5 sigma deviation from the Standard Model. Recent changes in the theoretical calculation reduce this to 1.5 sigma. The 2000 data set will double the precision. Do we still have a deviation from the Standard Model and what goes into the Standard Model calculation anyway? Results from the latest run and details of the experiment will be presented.

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