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Observation of orbitally excited B-s mesons

Aaltonen, T; Abulencia, A; Adelman, J; Akimoto, T; Albrow, MG; Gonzalez, BA; Amerio, S; ... CDF Collaboration, .; + view all (2008) Observation of orbitally excited B-s mesons. Physical Review Letters , 100 (8) , Article 082001. 10.1103/PhysRevLett.100.082001. Green open access

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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 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).

Type: Article
Title: Observation of orbitally excited B-s mesons
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.100.082001
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.100.082001
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: HEAVY MESONS, DETECTOR, QUARK
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131686
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