期刊
PHYSICAL REVIEW LETTERS
卷 100, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.082002
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资金
- Science and Technology Facilities Council [PP/E000487/1, PP/D004284/1] Funding Source: researchfish
- STFC [PP/E000487/1] Funding Source: UKRI
We report the direct observation of the excited L=1 state B-s2* in fully reconstructed decays to B+K-. The mass of the B-s2* meson is measured to be 5839.6 +/- 1.1(stat)+/- 0.7(syst) MeV/c(2), and its production rate relative to the B+ meson is measured to be [1.15 +/- 0.23(stat)+/- 0.13(syst)]%.
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