Title
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Observation of the heavy baryons and
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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 an observation of new bottom baryons produced in pp̅ collisions at the Tevatron. Using 1.1 fb-1 of data collected by the CDF II detector, we observe four Λb0π± resonances in the fully reconstructed decay mode Λb0→Λc+π-, where Λc+→pK-π+. We interpret these states as the Σb(*)± baryons and measure the following masses: mΣb+=5807.8-2.2+2.0(stat.)±1.7(syst.) MeV/c2, mΣb-=5815.2±1.0(stat.)±1.7(syst.) MeV/c2, and m(Σb*)-m(Σb)=21.2-1.9+2.0(stat.)-0.3+0.4(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
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2007
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ISSN
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0031-9007
[print]
1079-7114
[online]
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Volume/pages
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99
:20
(2007)
, p. 202001,1-202001,7
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ISI
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000251003600013
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Full text (Publisher's DOI)
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Full text (open access)
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