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Observation of orbitally excited Bs mesons

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Aaltonen, T., Abulencia, A., Adelman, J., Akimoto, T., Albrow, M., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A. et al.
(2008) Observation of orbitally excited Bs mesons. Physical Review Letters, Vol.100 (No.8). Article no. 082001. doi:10.1103/PhysRevLett.100.082001

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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.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Physics
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 28 February 2008
Dates:
DateEvent
28 February 2008Published
Volume: Vol.100
Number: No.8
Number of Pages: 7
Page Range: Article no. 082001
DOI: 10.1103/PhysRevLett.100.082001
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: U. S. Department of Energy, National Science Foundation (NSF), Istituto Nazionale di Fisica Nucleare, Ministry of Education, Culture, Sports, Science and Technology of Japan, Natural Sciences and Engineering Research Council (Canada) (NSERC), National Science Council of the Republic of China, Swiss National Science Foundation, A.P. Sloan Foundation, Bundesministerium für Bildung und Forschung (Germany), Korean Science and Engineering Foundation, Korean Research Foundation, Science and Technology Facilities Council (Great Britain) (STFC), Royal Society (UK), Institut National de Physique Nucleaire et Physique des Particules/ CNRS, Russian Foundation for Basic Research, Comisión Interministerial de Ciencia y Tecnología (Spain), European Community's Human Potential Programme (ECHPP), Slovak R&D Agency, Academy of Finland
Grant number: HPRN-CT-2002-00292 (ECHPP)

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