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-0 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 D-0 -> K+K-K-pi(+), the D-0 mass is measured to beM(D-0) = 1864.75 +/- 0.15 (stat) +/- 0.11 (syst) MeV/c(2).The mass differencesM(D+) - M(D-0) = 4.76 +/- 0.12 (stat) +/- 0.07 (syst) MeV/c(2),M(D-s(+)) - M(D+) = 98.68 +/- 0.03 (stat) +/- 0.04 (syst) MeV/c(2)are measured using the D-0 -> K+K-pi(+)pi(-) and D-(s)(+) -> K+K-pi(+) modes.
Original language | English |
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Article number | 065 |
Number of pages | 17 |
Journal | Journal of High Energy Physics |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Jun 2013 |
Externally published | Yes |
Keywords
- Hadron-Hadron Scattering
- DECAY
- TOOL