BABAR News and Press Releases

• BaBar search for a dark photon highlighted in APS Physics Viewpoint.
  November 10, 2014
  A recent search for a dark photon in e+e- collisions performed by BaBar, and published on Phys. Rev. Lett. 113, 201801 (2014) (PDF), has been featured in a Physics Viewpoint article: New Light Shed on Dark Photons.


• Physics World spotlights BaBar time-reversal measurement.
  December 14, 2012
  PhysicsWorld.com has selected the BaBar time-reversal measurement as one of the top 10 breakthroughs for 2012.
• 500th BaBar paper accepted for publication
  November 16, 2012
  The benchmark underscores BaBar’s high scientific productivity. Since April 2008, when Babar ceased operation, the collaboration has continued to mine this uniquely versatile data sample, with its rich array of yet-to-be-explored physics.
• BaBar improves search for invisible decays of the B meson
  October 29, 2012
  B meson decays into undetectable particles are extremely rare, making them an excellent way to search for new physics. BaBar publishes the most precise search of such decays.
• BaBar Makes First Direct Observation of Time-Reversal Violation
  August 30, 2012
  Fundamental interactions among particles are oblivious to the direction of time (a movie of a rock thrown up and falling back looks the same whether run forward or backward), except in cases where matter and antimatter behave differently. BaBar has made the first direct, unambiguous measurement of this time-reversal symmetry violation. This result has been covered in articles in Nature Research Highlight, Physics Today, Viewpoints in Physics, and The Economist Magazine, among others. Physics World has reported on this result and selected it to be among the top ten breakhroughs of 2012.
• BaBar Data in Tension with the Standard Model
  May 24, 2012
  (See June 18 press release, science highlight, PRL synopsis) The BABAR collaboration reported on new measurements of decays of B mesons into final states containing a tau lepton, the heavy third-generation cousin of the electron and muon. The decay branching fractions are higher than predicted by the Standard Model with a 3.4σ level of significance.
• BaBar Data Preserved in 'Computational Cocoon' for Future Analysis
  May 14, 2012
  More than eight years worth of pristine particle physics data will remain available for analysis or re-analysis at least until 2018, now that BaBar's Long Term Data Access project is complete.
• Particle-Physics History on Display
  May 9, 2012
  BABAR's innermost system, the Silicon Vertex Tracker, gets a new life as a unique exhibit of particle-detector design and construction.
• Hunting Dark Photons and Higgs with BABAR: Science Highlight and Symmetry Magazine Article
  May 2012
  Light dark photons? Dark Higgs bosons? Scientists look for signs of these weird-sounding particles in data from BaBar—an experiment designed to explain a completely different mystery.
• BABAR Members Greeted Warmly at Wintery Conference
  March 1, 2012
  Four members of the BaBar collaboration braved frigid temperatures to present the results of thirteen new analyses at the 27th annual Lake Louise Winter Institute, held in the heart of the Canadian Rockies.
• BABAR Particle-Identification Detector: The Next Generation
  February 14, 2012
  The technology behind the photon camera at the heart of BABAR's Detection of Internally Reflected Cherenkov light (DIRC) detector is getting an upgrade.
• BaBar Extends the Search for New Matter-Antimatter Asymmetries: Science Highlight and SLAC Today Article
  February 2, 2012
  Having proven the standard model explanation of differences between matter and antimatter, BABAR extends the search for new sources of asymmetry in rare decays of the B meson.
• BaBar Studies Matter-Antimatter Asymmetry in Tau Lepton Decays: Science Highlight and SLAC Today Article
  December 5, 2011
  BABAR physicists search for cracks in the reigning particle-physics theory by studying matter-antimatter asymmetries in processes where the theory predicts asymmetries to be very small or nonexistent.
• The BABAR Collaboration Meets at SLAC
  November 7, 2011
  BABAR collaboration members converge on SLAC to discuss upcoming publications and ongoing data analyses.
• SLAC Theorist Interviews on BABAR Physics for the Discovery Channel
  September 1, 2011
  A televised game of checkers illustrates the matter-antimatter asymmetry of the universe.
• BABAR Observes B-Meson Decays into Tau-Lepton Final States and Extracts Implications for the Charged Higgs: Science Highlight and SLAC Today Article
  August 9, 2011
  Decays involving these third-generation particles act as a probe of new physics at high mass scales.
• BABAR Observes B-Meson Decays into Tau-Lepton Final States and Extracts Implications for Charged Higgs
  July, 2011
  Decays involving these third-generation particles act as a probe of new physics at high mass scales.