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Observation of orbitally excited Bs mesons
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CDF Collaboration (Including:
). (2008) Observation of orbitally excited Bs mesons. Physical Review Letters, Vol.100 (No.8). Article no. 082001. doi:10.1103/PhysRevLett.100.082001 ISSN 0031-9007.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.082001
Abstract
We report the observation of two narrow resonances consistent with states of orbitally excited (L=1) Bs mesons using 1 fb-1 of pp¯ collisions at √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/ψK+, J/ψ→μ+μ- or B+→D¯ 0π+, D¯ 0→K+π-. We deduce the masses of the two states to be m(Bs1)=5829.4±0.7 MeV/c2 and m(Bs2*)=5839.6±0.7 MeV/c2.
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