Precision measurement of D meson mass differences
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13130_2013_Article_6268.pdf
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Author(s)
Aaij, R.
Abellan Beteta, C.
Adeva, B.
Adinolfi, M.
Adrover, C.
Affolder, A.
Ajaltouni, Z.
Albrecht, J.
Alessio, F.
Alexander, M.
Date Issued
June 2013
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
The LHCb collaboration et al. “Precision Measurement of D Meson Mass Differences.” Journal of High Energy Physics 2013.6 (2013): n. pag. © 2013 CERN for the benefit of the LHCb collaboration
Version
Final published version
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 D[superscript 0] mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb[superscript −1] collected in pp collisions at 7 TeV. Using the decay D[superscript 0] → K[superscript +]K[superscript −]K[superscript−]π[superscript +], the D[superscript 0] mass is measured to be M(D[superscript 0])=1864.75±0.15(stat)±0.11(syst)MeV/c[superscript 2]. The mass differences M(D[superscript +]) − M(D[superscript 0]) = 4.76 ± 0.12 (stat) ± 0.07 (syst) MeV/c[superscript 2], (M(D[superscript s])−M(D[superscript +])=98.68±0.03(stat)±0.04(syst)MeV/c[superscript 2] are measured using the D[superscript 0] → K[superscript +]K[superscript −]π[superscript +]π[superscript −] and D[superscript +][subscript (s)]→K[superscript +]K[superscript −]π[superscript +] modes.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
http://dx.doi.org/10.1007/JHEP06(2013)065
