Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb^−1 collected in pp collisions at 7 TeV. Using the decay D0 → K+ K− K− π+, the D0 mass is measured to be M(D0) = 1864.75 ± 0.15(stat) ± 0.11(syst)MeV/c2. The mass differences M(D+) − M(D0) = 4.76 ± 0.12(stat) ± 0.07(syst) MeV/c2, M(Ds) − M(D+) = 98.68 ± 0.03(stat) ± 0.04(syst) MeV/c2 are measured using the D0 → K+ K− π+ π− and D(s)+ → K+ K− π+ modes.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Precision Measurement of D Meson Mass Differences. JOURNAL OF HIGH ENERGY PHYSICS, 2013(6), 0-16 [10.1007/JHEP06(2013)065].

Precision Measurement of D Meson Mass Differences

CARBONE, ANGELO;GALLI, DOMENICO;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013

Abstract

Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb^−1 collected in pp collisions at 7 TeV. Using the decay D0 → K+ K− K− π+, the D0 mass is measured to be M(D0) = 1864.75 ± 0.15(stat) ± 0.11(syst)MeV/c2. The mass differences M(D+) − M(D0) = 4.76 ± 0.12(stat) ± 0.07(syst) MeV/c2, M(Ds) − M(D+) = 98.68 ± 0.03(stat) ± 0.04(syst) MeV/c2 are measured using the D0 → K+ K− π+ π− and D(s)+ → K+ K− π+ modes.
2013
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Precision Measurement of D Meson Mass Differences. JOURNAL OF HIGH ENERGY PHYSICS, 2013(6), 0-16 [10.1007/JHEP06(2013)065].
R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/148877
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