Measurement of Branching Fractions for Two-Body Charmless B Decays to Charged Pions and Kaons at BaBar [electronic resource]
The authors present preliminary results of a search for charmless two-body B decays to charged pions and kaons using data collected by the BaBar detector at the Stanford Linear Accelerator Center's PEP-II Storage ring. In a sample of 8.8 million produced B anti-B pairs the authors measure the b...
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Online Access (via OSTI) |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2000.
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| Subjects: |
| Summary: | The authors present preliminary results of a search for charmless two-body B decays to charged pions and kaons using data collected by the BaBar detector at the Stanford Linear Accelerator Center's PEP-II Storage ring. In a sample of 8.8 million produced B anti-B pairs the authors measure the branching fractions beta(B° --> pi⁺pi{sup −}) = (9.3{sub −2.3−1.4}{sup +2.6+1.2}) x 10{sup −6} and beta(B° --> K⁺pi{sup −}) = (12.5{sub −2.6−1.7}{sup +3.0+1.3}) x 10{sup −6}, where the first uncertainty is statistical and the second is systematic. For the decay B° --> K⁺K{sup −} they find no significant signal and set an upper limit of beta(B° --> K⁺K{sup −}) < 6.6 x 10{sup −6} at the 90% confidence level. |
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| Item Description: | Published through SciTech Connect. 08/28/2000. "slac-pub-8536" Barrera, Barbara. |
| Physical Description: | 592 kilobytes pages : digital, PDF file. |