Observation of the time dependence of B(d)0 - anti-B(d)0 mixing - INSPIRE

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Observation of the time dependence of B(d)0 - anti-B(d)0 mixing

ALEPH

Collaboration

•

D. Buskulic
(
- Annecy, LAPP
)

Jun, 1993

11 pages

Published in:

Phys.Lett.B 313 (1993) 498-508

DOI:

10.1016/0370-2693(93)90025-D

PDG:

\Delta {\mathit m}_{{{\mathit B}^{0}}}

{\mathit m}_{{{\mathit B}_{{{H}}}^{0}}}-{\mathit m}_{{{\mathit B}_{{{L}}}^{0}}}

Report number:

CERN-PPE-93-99,
FSU-SCRI-93-122

Experiments:

CERN-LEP-ALEPH

View in:

CERN Document Server

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Abstract: (Elsevier)

The time dependence of B 0 d − B 0 d oscillations has been observed using events with a d ∗ , decaying into a D 0 π + , and a lepton in opposite hemispheres. The time dependence of the oscillations is derived from the displacement of the D 0 vertex and the D ∗ -lepton charge correlation. From a fit for the oscillation frequency the mass difference of the B 0 d states is measured: Δm = [3.44 +0.65 −0.70 (stat.) +0.26 −0.20 (syst.)] × 10 −4 eV/ c 2 .

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
B0: electroproduction
electroproduction: B0
lepton: associated production
associated production: lepton
B0 anti-B0: mixing
interference: time dependence

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Figures(0)

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