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Measurement of the D^{*}(2010)^{+}-D^{+} mass difference

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BABAR Collaboration (Including:

Lees, J. P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, D. N., Kolomensky, Yu G., Fritsch, M., Koch, H. et al.
). (2017) Measurement of the D^{*}(2010)^{+}-D^{+} mass difference. Physical Review Letters, 119 (20). 202003. doi:10.1103/PhysRevLett.119.202003

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Official URL: http://doi.org/10.1103/PhysRevLett.119.202003

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Abstract

We measure the mass difference, Δm_{+}, between the D^{*}(2010)^{+} and the D^{+} using the decay chain D^{*}(2010)^{+}→D^{+}π^{0} with D^{+}→K^{-}π^{+}π^{+}. 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 468  fb^{-1}. We measure Δm_{+}=(140 601.0±6.8[stat]±12.9[syst])  keV. We combine this result with a previous BABAR measurement of Δm_{0}≡m(D^{*}(2010)^{+})-m(D^{0}) to obtain Δm_{D}=m(D^{+})-m(D^{0})=(4824.9±6.8[stat]±12.9[syst])  keV. These results are compatible with and approximately five times more precise than the Particle Data Group averages.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 17 November 2017
Dates:
DateEvent
17 November 2017Published
14 November 2017Available
Volume: 119
Number: 20
Article Number: 202003
DOI: 10.1103/PhysRevLett.119.202003
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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