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Searches for B-0 decays to combinations of two charmless isoscalar mesons

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Gaillard, JM; Hicheur, A; Karyotakis, Y; ... BaBar Collaboration; + view all (2004) Searches for B-0 decays to combinations of two charmless isoscalar mesons. PHYS REV LETT , 93 (18) , Article 181806. 10.1103/PhysRevLett.93.181806. Green open access

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Abstract

We search for B meson decays into two-body combinations of eta,eta('),omega, and phi mesons from 89 x 10(6) B(B) over bar pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We find the branching fraction B(B-0 --> etaomega) = (4.0(-1.2)(+1.3)+/-0.4) x 10(-6) with a significance of 4.3sigma. For the other decay modes we set the following 90% confidence level upper limits on the branching fractions, in units of 10(-6): B(B-0 --> etaeta) < 2.8, B(B-0 --> etaeta') < 4.6, B(B-0 --> eta'eta') < 10, B(B-0 --> eta'omega) < 2.8, B(B-0 --> etaphi) < 1.0, B(B-0 --> eta'phi) < 4.5, and B(B-0 --> phiphi) < 1.5.

Type: Article
Title: Searches for B-0 decays to combinations of two charmless isoscalar mesons
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.93.181806
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.93.181806
Language: English
Additional information: The American Physical Society
Keywords: QCD FACTORIZATION, STANDARD MODEL
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.ucl.ac.uk/id/eprint/1303682
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