Measurement of mass and width of the excited charmed meson states D10 and D2*0 at CDF

Measurement of mass and width of the excited charmed meson states D10 and D2*0 at CDF

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We report on precision measurements of the masses and widths of the narrow, orbitally excited states D10 and D2*0 using the CDF II detector at the Fermilab Tevatron. Both states (collectively called D**) are reconstructed in the decay channel D**→D*+π-. The D2*0 is also reconstructed in the D**→D+π-...

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Bibliographic Details
Main Authors: Abulencia, A, Acosta, D, Adelman, J, Affolder, T, Akimoto, T, Albrow, MG, Ambrose, D, Amerio, S, Amidei, D, Anastassov, A, Anikeev, K, Annovi, A, Antos, J, Aoki, M, Apollinari, G, Arguin, J, Arisawa, T, Artikov, A, Ashmanskas, W, Attal, A, Azfar, F, Azzi-Bacchetta, P, Azzurri, P, Bacchetta, N, Bachacou, H
Format: Journal article
Language:English
Published: 2006
Description
Summary:We report on precision measurements of the masses and widths of the narrow, orbitally excited states D10 and D2*0 using the CDF II detector at the Fermilab Tevatron. Both states (collectively called D**) are reconstructed in the decay channel D**→D*+π-. The D2*0 is also reconstructed in the D**→D+π- channel. Using a data set with an integrated luminosity of 210pb-1, the measured masses and widths for the D10 are 2421.7±0.7±0.6 MeV/c2 and 20.0±1.7±1.3 MeV/c2 respectively, while for the D2*0 they are 2463.3±0.6±0.8 MeV/c2 and 49.2±2.3±1.2 MeV/c2. These values are currently the single best measurements available. © 2006 The American Physical Society.

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