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Measurement of the mass and width of the D_{s1}(2536)^{+} meson

Tools

BABAR (Including:

Lees, J., Poireau, V., Prencipe, E., Tisserand, V., Garra Tico, J., Grauges, E., Martinelli, M., Milanes, D., Palano, A., Pappagallo, M. et al.
). (2011) Measurement of the mass and width of the D_{s1}(2536)^{+} meson. Physical Review D, Vol.83 (No.7). article no. 072003 . doi:10.1103/PhysRevD.83.072003 ISSN 0556-2821.

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Abstract

The decay width and mass of the Ds1(2536)+ meson are measured via the decay channel Ds1+→D*+KS0 using 385  fb-1 of data recorded with the BABAR detector in the vicinity of the Υ(4S) resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is Γ(Ds1+)=0.92±0.03(stat.)±0.04(syst.)  MeV. For the mass, a value of m(Ds1+)=2535.08±0.01(stat.)±0.15(syst.)  MeV/c2 is obtained. The mass difference between the Ds1+ and the D*+ is measured to be m(Ds1+)-m(D*+)=524.83±0.01(stat.)±0.04(syst.)  MeV/c2, representing a significant improvement compared to the current world average. The unnatural spin-parity assignment for the Ds1+ meson is confirmed

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Journal or Publication Title: Physical Review D
Publisher: American Physical Society
ISSN: 0556-2821
Official Date: 19 April 2011
Dates:
DateEvent
19 April 2011Published
Volume: Vol.83
Number: No.7
Number of Pages: 14
Page Range: article no. 072003
DOI: 10.1103/PhysRevD.83.072003
Status: Peer Reviewed
Publication Status: Published
Funder: US Department of Energy , National Science Foundation (U.S.) (NSF), Natural Sciences and Engineering Research Council (Canada) , Commissariat a l'Energie Atomique and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany) , Istituto Nazionale di Fisica Nucleare (Italy) , Foundation for Fundamental Research on Matter (The Netherlands) , Research Council of Norway , Ministry of Education and Science of the Russian Federation , Ministerio de Educacion y Ciencia (Spain) , Science and Technology Facilities Council (United Kingdom) (STFC), European Union (EU), A. P. Sloan Foundation

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