BaBar and the missing antimatter

3 February 1999

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The BaBar detector, which is nearing completion at the Stanford Linear Accelerator Center (SLAC) in the US, is designed to detect particles that contain b-quarks, the second heaviest member of the quark family of fundamental particles.The decays of these quarks could hold clues about the domination of matter over antimatter in the Universe. The detector, which registered its first events from cosmic rays last year, should record its first data with b-quarks in May 1999. The b-quarks (and antiquarks) will be produced in the collisions of electrons and positrons (antielectrons) in the PEP-II Asymmetric B Factory at SLAC.

Credit: Email Daryl Oshatz / Ernest Orlando Lawrence Berkeley National Laboratory

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