Abstract
The latest gμ-2 measurement by Brookhaven National Laboratory (BNL) confirms the earlier measurement with twice the precision. However, interpretation of the result requires specific assumptions regarding the errors in the hadronic light by light (LBL) correction and in the hadronic vacuum polarization correction. Under the assumption that the recent reanlayses of the LBL correction are valid, the new BNL result implies a deviation between experiment and the standard model of 1.6σ-2.6σ depending on the estimate of the hadronic vacuum polarization correction. We reexamine the gμ-2 constraint for minimal supergravity and its implications for the direct detection of sparticles at colliders and for the search for supersymmetric dark matter in view of the new evaluation
Keywords
Brookhaven gμ-2
Subject Categories
Supergravity, Dark matter (Astronomy)
Disciplines
Physics
Publisher
American Physical Society
Publication Date
11-6-2002
Rights Information
Copyright (2002) American Physical Society
Rights Holder
American Physical Society
Recommended Citation
Chattopadhyay, Utpal and Nath, Pran, "Interpreting the new Brookhaven gμ-2" (2002). Physics Faculty Publications. Paper 454.
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Notes
Originally published in Physical Review D v.66 (2002): 093001. DOI: 10.1103/PhysRevD.66.093001