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Measurement of the D*(2010)+ natural linewidth and the D*(2010)+-D0 mass difference
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BaBar Collaboration (Including: Gershon, T. J., Harrison, P. F. and Latham, Thomas). (2013) Measurement of the D*(2010)+ natural linewidth and the D*(2010)+-D0 mass difference. Physical Review D - Particles, Fields, Gravitation and Cosmology , Volume 88 (Number 5). Article number 052003. doi:doi: 10.5606/tgkdc.dergisi.2013.6683 ISSN 1550-7998.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.88.052003
Abstract
We measure the mass difference, Δm0, between the D *(2010)+ and the D0 and the natural linewidth, Γ, of the transition D*(2010)+→D0π +. The data were recorded with the BABAR detector at center-of-mass energies at and near the Υ(4S) resonance, and correspond to an integrated luminosity of approximately 477 fb-1. The D0 is reconstructed in the decay modes D0→K-π+ and D0→K -π+π-π+. For the decay mode D0→K-π+ we obtain Γ=(83.4±1. 7±1.5) keV and Δm0=(145425.6±0.6±1.8) keV, where the quoted errors are statistical and systematic, respectively. For the D0→K-π+π-π+ mode we obtain Γ=(83.2±1.5±2.6) keV and Δm0= (145426.6±0.5±2.0) keV. The combined measurements yield Γ=(83.3±1.2±1.4) keV and Δm0=(145425. 9±0.4±1.7) keV; the width is a factor of approximately 12 times more precise than the previous value, while the mass difference is a factor of approximately 6 times more precise.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||
| Journal or Publication Title: | Physical Review D - Particles, Fields, Gravitation and Cosmology | ||||||
| Publisher: | American Physical Society | ||||||
| ISSN: | 1550-7998 | ||||||
| Official Date: | 9 September 2013 | ||||||
| Dates: |
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| Volume: | Volume 88 | ||||||
| Number: | Number 5 | ||||||
| Article Number: | Article number 052003 | ||||||
| DOI: | doi: 10.5606/tgkdc.dergisi.2013.6683 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Access rights to Published version: | Restricted or Subscription Access |
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