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Title
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Observation and mass measurement of the baryon
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Author
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Institution/Organisation
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CDF Collaboration
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Abstract
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| We report the observation and measurement of the mass of the bottom, strange baryon Ξb- through the decay chain Ξb-→J/ψΞ-, where J/ψ→μ+μ-, Ξ-→Λπ-, and Λ→pπ-. A signal is observed whose probability of arising from a background fluctuation is 6.6×10-15, or 7.7 Gaussian standard deviations. The Ξb- mass is measured to be 5792.9±2.5(stat) ±1.7(syst) MeV/c2. |
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Language
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English
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Source (journal)
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Physical review letters. - New York, N.Y., 1958, currens
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Publication
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New York, N.Y.
:
American Physical Society
,
2007
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ISSN
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0031-9007
[print]
1079-7114
[online]
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DOI
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10.1103/PHYSREVLETT.99.052002
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Volume/pages
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99
:5
(2007)
, p. 052002,1-052002,7
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ISI
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000248597500013
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Full text (Publisher's DOI)
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Full text (open access)
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