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Measurement of Resonance Parameters of Orbitally Excited Narrow B-0 Mesons

Aaltonen, T; Adelman, J; Akimoto, T; Albrow, MG; Gonzalez, BA; Amerio, S; Amidei, D; ... Zucchelli, S; + view all (2009) Measurement of Resonance Parameters of Orbitally Excited Narrow B-0 Mesons. Physical Review Letters , 102 (10) , Article 102003. 10.1103/PhysRevLett.102.102003. Green open access

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Abstract

We report a measurement of resonance parameters of the orbitally excited (L=1) narrow B-0 mesons in decays to B(*)+pi(-) using 1.7 fb(-1) of data collected by the CDF II detector at the Fermilab Tevatron. The mass and width of the B-2(*0) state are measured to be m(B-2(*0))=5740.2(-1.8)(+1.7)(stat)(-0.8)(+0.9)(syst) MeV/c(2) and Gamma(B-2(*0))=22.7(-3.2)(+3.8)(stat)(-10.2)(+3.2)(syst) MeV/c(2). The mass difference between the B-2(*0) and B-1(0) states is measured to be 14.9(-2.5)(+2.2)(stat)(-1.4)(+1.2)(syst) MeV/c(2), resulting in a B-1(0) mass of 5725.3(-2.2)(+1.6)(stat)(-1.5)(+1.4)(syst) MeV/c(2). This is currently the most precise measurement of the masses of these states and the first measurement of the B-2(*0) width.

Type: Article
Title: Measurement of Resonance Parameters of Orbitally Excited Narrow B-0 Mesons
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.102.102003
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.102.102003
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-LIGHT MESONS, B-MESONS, DETECTOR, DECAYS, PACKAGE, PHYSICS
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/131652
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