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. 2008 Feb 29;100(8):082001.
doi: 10.1103/PhysRevLett.100.082001. Epub 2008 Feb 28.

Observation of orbitally excited B(s) mesons

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TorrettaS TourneurW TrischukY TuN TuriniF UkegawaS UozumiS VallecorsaN van RemortelA VarganovE VatagaF VázquezG VelevC VellidisV VeszpremiM VidalR VidalI VilaR VilarT VineM VogelI VolobouevG VolpiF WürthweinP WagnerR G WagnerR L WagnerJ WagnerW WagnerT WakisakaR WallnyS M WangA WarburtonD WatersM WeinbergerW C Wester 3rdB WhitehouseD WhitesonA B WicklundE WicklundG WilliamsH H WilliamsP WilsonB L WinerP WittichS WolbersC WolfeT WrightX WuS M WynneA YagilK YamamotoJ YamaokaT YamashitaC YangU K YangY C YangW M YaoG P YehJ YohK YoritaT YoshidaG B YuI YuS S YuJ C YunL ZanelloA ZanettiI ZawX ZhangY ZhengS ZucchelliCDF Collaboration
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Free article

Observation of orbitally excited B(s) mesons

T Aaltonen et al. Phys Rev Lett. .
Free article

Abstract

We report the observation of two narrow resonances consistent with states of orbitally excited (L=1) B_(s) mesons using 1 fb;(-1) of pp[over ] collisions at sqrt[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/psiK(+), J/psi-->mu(+)mu(-) or B(+)-->D[over ](0)pi(+), D[over ](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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