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Measurement of branching fractions and charge asymmetries in B+ decays to eta pi(+), eta K+, eta rho(+), and eta(')pi(+), and search for B-0 decays to eta K-0 and eta omega

Aubert, B; Barate, R; Boutigny, D; Couderc, F; Karyotakis, Y; Lees, JP; Poireau, V; ... BaBar Collaboration; + view all (2005) Measurement of branching fractions and charge asymmetries in B+ decays to eta pi(+), eta K+, eta rho(+), and eta(')pi(+), and search for B-0 decays to eta K-0 and eta omega. PHYS REV LETT , 95 (13) , Article 131803. 10.1103/PhysRevLett.95.131803. Green open access

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Abstract

We present measurements of branching fractions and charge asymmetries for six B-meson decay modes with an eta or eta' meson in the final state. The data sample corresponds to 232 x 10(6) BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) B Factory at SLAC. We measure the branching fractions (in units of 10(-6)): B(B+ -> eta pi(+)) = 5.1 +/- 0.6 +/- 0.3, B(B+ -> eta K+) = 3.3 +/- 0.6 +/- 0.3, B(B-0 -> eta K-0) = 1.5 +/- 0.7 +/- 0.1 (< 2.5 at 90% C.L.), B(B+ -> eta rho(+)) = 8.4 +/- 1.9 +/- 1.1, B(B-0 -> eta omega) = 1.0 +/- 0.5 +/- 0.2 (< 1.9 at 90% C.L.), and B(B+ -> eta'pi(+)) = 4.0 +/- 0.8 +/- 0.4, where the first uncertainty is statistical and second systematic. For the charged modes we also determine the charge asymmetries, all found to be compatible with zero.

Type: Article
Title: Measurement of branching fractions and charge asymmetries in B+ decays to eta pi(+), eta K+, eta rho(+), and eta(')pi(+), and search for B-0 decays to eta K-0 and eta omega
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.95.131803
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.95.131803
Language: English
Additional information: © 2005 The American Physical Society
Keywords: QCD FACTORIZATION, CP-VIOLATION, PHYSICS
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/1303738
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