期刊
PHYSICAL REVIEW LETTERS
卷 100, 期 8, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.082001
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资金
- Science and Technology Facilities Council [PPA/A/S/2003/00461/2, PP/E000452/1, PP/E000444/1] Funding Source: researchfish
- STFC [PP/E000452/1] Funding Source: UKRI
We report the observation of two narrow resonances consistent with states of orbitally excited (L=1) B(s) mesons using 1 fb(-1) of p (p) over bar collisions at root s =1.96 TeV collected with the Collider Detector at Fermilab II detector at the Fermilab Tevatron. We use two-body decays into K(-) and B(+) mesons reconstructed as B(+)-> J/psi K(+), J/psi ->mu(+)mu(-) or B(+)->(D) over bar (0)pi(+), (D) over bar (0)-> K(+)pi(-). We deduce the masses of the two states to be m(B(s1))=5829.4 +/- 0.7 MeV/c(2) and m(B(s2)(*))=5839.6 +/- 0.7 MeV/c(2).
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