Aubert, B;
Barate, R;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
Poireau, V;
... BABAR Collaboration; + view all
(2005)
Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D-* + D*-.
PHYS REV LETT
, 95
(15)
, Article 151804. 10.1103/PhysRevLett.95.151804.
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Abstract
We present an updated measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D*+D*- using 232x10(6)B (B) over bar pairs collected by the BABAR detector at the SLAC PEP-II B factory. We determine the CP-odd fraction to be 0.125 +/- 0.044(stat) +/- 0.007(syst). The time-dependent CP asymmetry parameters C+ and S+ are determined to be 0.06 +/- 0.17(stat)+/- 0.03(syst) and -0.75 +/- 0.25(stat) +/- 0.03(syst), respectively. The standard model predicts these parameters to be 0 and -sin2 beta, respectively, in the absence of penguin amplitude contributions.
| Type: | Article |
|---|---|
| Title: | Measurement of time-dependent CP asymmetries and the CP-odd fraction in the decay B-0 -> D-* + D*- |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.151804 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.151804 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | VIOLATING ASYMMETRIES |
| 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.ucl.ac.uk/id/eprint/1303749 |
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