Hara, K;
Hazumi, M;
Abe, K;
Abe, K;
Abe, T;
Adachi, I;
Ahn, BS;
... Belle Collaboration, .; + view all
(2002)
Measurement of the B-0-(B)over-bar(0) mixing parameter Delta m(d) using semileptonic B-0 decays.
PHYS REV LETT
, 89
(25)
, Article 251803. 10.1103/PhysRevLett.89.251803.
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Abstract
We present a measurement of the B-0-(B-0) over bar mixing parameter Deltam(d) using neutral B meson pairs in a 29.1 fb(-1) data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We exclusively reconstruct one neutral B meson in the semileptonic B-0-->D*-.(+)nu decay mode and identify the flavor of the accompanying B meson from its decay products. From the distribution of the time intervals between the two flavor-tagged B meson decay points, we obtain Deltam(d)=(0.494+/-0.012+/-0.015) ps(-1), where the first error is statistical and the second error is systematic.
| Type: | Article |
|---|---|
| Title: | Measurement of the B-0-(B)over-bar(0) mixing parameter Delta m(d) using semileptonic B-0 decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.89.251803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.89.251803 |
| Language: | English |
| Keywords: | CP VIOLATION, MESON SYSTEM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1308390 |
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