Measurement of the <i>D</i>* (2010)<SUP>+</SUP> -<i>D</i><SUP>+</SUP> Mass Difference



Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, Yu G, Fritsch, M, Koch, H
et al (show 224 more authors) (2017) Measurement of the <i>D</i>* (2010)<SUP>+</SUP> -<i>D</i><SUP>+</SUP> Mass Difference. PHYSICAL REVIEW LETTERS, 119 (20). 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: Article
Uncontrolled Keywords: BABAR Collaboration
Depositing User: Symplectic Admin
Date Deposited: 05 Dec 2017 09:39
Last Modified: 12 Oct 2023 14:55
DOI: 10.1103/PhysRevLett.119.202003
Open Access URL: https://journals.aps.org/prl/pdf/10.1103/PhysRevLe...
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3013495

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