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1. CP violation
• Subject: BaBar observes CP violation in the B system
• Abstract: The BABAR detector at the PEP-II asymmetric B Factory at SLAC has observed, for the first time, CP violation in the neutral B system. As a result of their analysis it was obtained that sin2beta = 0.59 +/- 0.14 (stat) +/- 0.05 (syst), establishing CP violation at the 4.1 sigma level.
• Further information: hep-ex/0107013
• Date: July/6/2001

2. Solar standard model confirmed
• Subject: The SNO detector has shown that the total ⁸B neutrino flux from the sun is compatible with the solar standard model.
• Abstract: The Sudbury Neutrino Observatory (SNO) observed solar neutrinos via charged current and elastic scattering. These measuments together with the elastic scattering results from Super-Kamiokand allow to infer that the observed ⁸B neutrino flux is in agreement with the standard solar model predictions. This provides further evidence for active neutrino oscillations in the sun.
• Further information: SNO web page
• Date: June/30/2001

3. New Muon (g-2) measurement
• Subject: New muon (g-2) measurement may indicate a discrepancy with the standard model.
• Abstract: The Brookhaven E821 experiment has performed a very precise measurement of muon (g-2), obtaining that a_µ= 11 695 202 (14)(6) X 10^-10. This result is incompatible at 2.6 sigma with the current theoretical predictions, i.e. a_µ(exp) - a_µ(SM) = 43 (16) X 10^-10.
• Further information: E821 web page
• Date: Feburary/8/2001