Theory of the τ Lepton Anomalous Magnetic Moment
Abstract
This paper reviews and updates the Standard Model prediction of the τ lepton g-2. Updated QED and electroweak contributions are presented, together with new values of the leading-order hadronic term, based on the recent low energy e+ e- data from BaBar, CMD-2, KLOE and SND, and hadronic light-by-light contribution. The total prediction is confronted to the available experimental bounds on the τ lepton anomaly, and prospects for its future measurements are briefly discussed.
- Publication:
-
Modern Physics Letters A
- Pub Date:
- 2007
- DOI:
- 10.1142/S0217732307022694
- arXiv:
- arXiv:hep-ph/0701260
- Bibcode:
- 2007MPLA...22..159E
- Keywords:
-
- 14.60.Fg;
- 13.40.Em;
- Taus;
- Electric and magnetic moments;
- High Energy Physics - Phenomenology
- E-Print:
- 20 pages, 5 figures