Measurement of the B_d⁰B̅_d⁰ oscillation frequency using dimuon data in pp̅ collisions at √s =1.8TeV

Authors

F. Abe, National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
Kenneth A. Bloom, University of Nebraska-LincolnFollow
Collider Detector at Fermilab Collaboration

Date of this Version

9-1-1999

Comments

Published by American Physical Society. Phys. Rev. D 60, 051101 (1999). http://prd.aps.org. Copyright © 1999 American Physical Society. Permission to use.

Abstract

We present a measurement of the mass difference Δm_d of the two B_d⁰ mass eigenstates. We use a flavor tagging method based on the lepton charge, in a sample of events with two muons at low transverse momentum. The sample corresponds to an integrated luminosity of 90 pb^-1 collected by the Collider Detector at Fermilab. The result obtained is Dm_d=0.503±0.064(stat) ±0.071(syst) ps^-1.