Aubert, B;
Barate, R;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
... BABAR Collaboration; + view all
(2003)
Limits on D-0-(D)over-bar(0) mixing and CP violation from the ratio of lifetimes for decay to K-pi(+), K-K+, and pi(-)pi(+).
PHYS REV LETT
, 91
(12)
, Article 121801. 10.1103/PhysRevLett.91.121801.
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Abstract
We present a measurement of D-0-(D) over bar (0) mixing parameters using the ratios of lifetimes extracted from samples of D-0 mesons decaying to K(-)pi(+), K-K+, and pi(-)pi(+). Using 91 fb(-1) of data collected by the BABAR detector at the PEP-II asymmetric-energy B Factory, we obtain a value Y=[0.8+/-0.4(stat.)(-0.4)(+0.5)(syst.)]%, which, in the limit of CP conservation, corresponds to the mixing parameter y=DeltaGamma/2Gamma. Using the difference in lifetimes of D-0 and (D) over bar (0) mesons, we obtain the CP-violation parameter DeltaY=[-0.8+/-0.6(stat.)+/-0.2(syst.)]%.
| Type: | Article |
|---|---|
| Title: | Limits on D-0-(D)over-bar(0) mixing and CP violation from the ratio of lifetimes for decay to K-pi(+), K-K+, and pi(-)pi(+) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.91.121801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.91.121801 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| Keywords: | D-MESON SYSTEM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences 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/1303631 |
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