Tian, XC;
Ban, Y;
Abe, K;
Abe, K;
Aihara, H;
Arinstein, K;
Asano, Y;
... Belle Collaboration; + view all
(2005)
Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation.
PHYS REV LETT
, 95
(23)
, Article 231801. 10.1103/PhysRevLett.95.231801.
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Abstract
Using 281 fb(-1) of data from the Belle experiment recorded at or near the Upsilon(4S) resonance, we have measured the rates of the "wrong-sign" decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-) relative to those of the Cabibbo-favored decays D-0 -> K-pi(+)pi(0) and D-0 -> K-pi(+)pi(+)pi(-). These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D-0-(D) over bar (0) mixing; the latter has not yet been observed. We obtain R-WS(K pi pi(0))=[0.229 +/- 0.015(stat)(-0.009)(+0.013)(syst)]% and R-WS(K3 pi)=[0.320 +/- 0.018(stat)(-0.013)(+0.018)(syst)]%. The CP asymmetries are measured to be -0.006 +/- 0.053 and -0.018 +/- 0.044 for the K+pi(-)pi(0) and K+pi(-)pi(+)pi(-) final states, respectively.
| Type: | Article |
|---|---|
| Title: | Measurement of the wrong-sign decays D-0 -> K+pi(-)pi(0) and D-0 -> K+pi(-)pi(+)pi(-), and search for CP violation |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.231801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.231801 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| 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/1308494 |
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