Chistov, R;
Abe, K;
Abe, K;
Abe, T;
Aihara, H;
Akatsu, M;
Asano, Y;
... Belle Collaboration; + view all
(2004)
Observation of B+->psi(3770)K.
PHYS REV LETT
, 93
(5)
, Article 051803. 10.1103/PhysRevLett.93.051803.
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Abstract
We report the first observation of the decay B+-->psi(3770)K+ where the psi(3770) is reconstructed in the D-0(D) over bar (0) and D+D- decay channels. The obtained branching fraction is B(B+-->psi(3770)K+)=(0.48+/-0.11+/-0.07)x10(-3). We have measured the branching fraction for the decay B+-->D-0(D) over bar K-0(+) to be (1.17+/-0.21+/-0.15)x10(-3) and set a 90% confidence level upper limit of 0.90x10(-3) for the decay B+-->D+D-K+. We also present the results of a search for possible decays to D (D) over bar and D-0(D) over bar (0)pi(0) of the recently observed X(3872) particle. The analysis is based on 88 fb(-1) of data collected at the Y(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
| Type: | Article |
|---|---|
| Title: | Observation of B+->psi(3770)K |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.051803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.051803 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | E&E-ANNIHILATION, CHARMONIUM, RESONANCE |
| 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/1308435 |
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