Title
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Measurement of resonance parameters of orbitally excited narrow mesons
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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 a measurement of resonance parameters of the orbitally excited (L=1) narrow B0 mesons in decays to B(*)+π- using 1.7 fb-1 of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B2*0 state are measured to be m(B2*0)=5740.2-1.8+1.7(stat)-0.8+0.9(syst) MeV/c2 and Γ(B2*0)=22.7-3.2+3.8(stat)-10.2+3.2(syst) MeV/c2. The mass difference between the B2*0 and B10 states is measured to be 14.9-2.5+2.2(stat)-1.4+1.2(syst) MeV/c2, resulting in a B10 mass of 5725.3-2.2+1.6(stat)-1.5+1.4(syst) MeV/c2. This is currently the most precise measurement of the masses of these states and the first measurement of the B2*0 width. |
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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.
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American Physical Society
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2009
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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.102.102003
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Volume/pages
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102
:10
(2009)
, p. 102003,1-102003,7
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ISI
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000264139500016
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Full text (Publisher's DOI)
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Full text (open access)
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