CERN Accelerating science

Article
Report number hep-ex/9707010 ; CERN-PPE-97-064 ; CERN-PPE-97-64 ; CERN-PPE-97-064
Title An updated study of B meson oscillations using dilepton events
Related titleAn updated study of B meson oscillations using dilepton events.
Author(s) OPAL Collaboration  Show all 335 authors
Affiliation (CERN)
Publication 1997
Imprint 5 Jun 1997
Number of pages 18
Note 18 pages, LaTeX, 5 eps figures included, submitted to Zeit. f. Physik Report-no: CERN-PPE/97-064
In: Z. Phys. C 76 (1997) 417-423
DOI 10.1007/s002880050565
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; OPAL
Abstract This paper reports a study of B meson oscillations using hadronic Z^0 decays with two identified leptons, and updates a previous publication by including data collected in 1994. Decay times are reconstructed for each of the semileptonic B decays by forming vertices which include the lepton and by estimating the B meson momentum. The mass difference, Delta(m_d), between the two mass eigenstates in the B^0_d system is measured to be 0.430 +/- 0.043 + 0.028 - 0.030 ps^-1, where the first error is statistical and the second error is systematic. For the B^0_s system, a lower limit of Delta(m_s) > 2.2 ps^-1 is obtained at 95% C.L.

Corresponding record in: Inspire


 Record created 1997-07-03, last modified 2024-06-13


Fulltext:
9707010 - Download fulltextPDF
arXiv:hep-ex_9707010 - Download fulltextPDF
External link:
Download fulltexthep-ex/9707010 PDF
  • Send to ScienceWise.info