The time dependence of B(d)0-B(d)0BAR oscillations has been observed using events with a D*, decaying into a D0pi+, and a lepton in opposite hemispheres. The time dependence of the oscillations is derived from the displacement of the D0 vertex and the D*-lepton charge correlation. From a fit for the oscillation frequency the mass difference of the B(d)0 states is measured: DELTAm = [3.44(-0.70)+0.65(stat.)-0.20(+0.26)(syst.)] x 10(-4) eV/c2.

Observation of the Time-dependence of B(d)o-(b(d)o)bar Mixing / Focardi, E., Debonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J.P., Minard, M.N., Pietrzyk, B., Ariztizabal, F., Comas, P., Crespo, J.M., Delfino, M., Efthymiopoulos, I., Fernandez, E., Fernandezbosman, M., Gaitan, V., Garrido, L., Mattison, T., Pacheco, A., Padilla, C., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 313:(1993), pp. 498-508. [10.1016/0370-2693(93)90025-D]

Observation of the Time-dependence of B(d)o-(b(d)o)bar Mixing

FOCARDI, ETTORE;CIULLI, VITALIANO;
1993

Abstract

The time dependence of B(d)0-B(d)0BAR oscillations has been observed using events with a D*, decaying into a D0pi+, and a lepton in opposite hemispheres. The time dependence of the oscillations is derived from the displacement of the D0 vertex and the D*-lepton charge correlation. From a fit for the oscillation frequency the mass difference of the B(d)0 states is measured: DELTAm = [3.44(-0.70)+0.65(stat.)-0.20(+0.26)(syst.)] x 10(-4) eV/c2.
1993
313
498
508
Focardi, Ettore; Debonis, I.; Decamp, D.; Ghez, P.; Goy, C.; Lees, J. P.; Minard, M. N.; Pietrzyk, B.; Ariztizabal, F.; Comas, P.; Crespo, J. M.; Delf...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/770605
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