Measurement of branching fractions and charge asymmetries in $B^+$ decays to $ \eta \pi^+, \eta K^+, \eta \rho^+$ and $\eta^\prime \pi^+$, and search for $B^0$ decays to $\eta K^0$ and $\eta \omega$ - INSPIRE

DataBETA

Measurement of branching fractions and charge asymmetries in $B^+$ decays to $\eta \pi^+, \eta K^+, \eta \rho^+$ and $\eta^\prime \pi^+$ , and search for $B^0$ decays to $\eta K^0$ and $\eta \omega$

BaBar

Collaboration

Mar, 2005

7 pages

Published in:

Phys.Rev.Lett. 95 (2005) 131803

e-Print:

hep-ex/0503035 [hep-ex]

DOI:

10.1103/PhysRevLett.95.131803

PDG:

{{\mathit B}^{+}}

\rightarrow

{{\mathit \eta}^{\,'}}{{\mathit \pi}^{+}}

Report number:

SLAC-PUB-11079,
BABAR-PUB-05-003

Experiments:

SLAC-PEP2-BABAR

View in:

reference search28 citations

Citations per year

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 million BBbar 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->etapi+)=5.1+/-0.6+/-0.3, B(B->etaK+)=3.3+/-0.6+/-0.3, B(B->etaK0)=1.5+/-0.7+/-0.1 (<2.5 at 90% C.L.), B(B->etarho+)=8.4+/-1.9+/-1.1, B(B->etaomega)=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. We also determine the charge asymmetries for the charged modes: Ach(B->etapi+)=-0.13+/-0.12+/-0.01, Ach(B->etaK+)=-0.20+/-0.15+/-0.01, Ach(B->etarho+)=0.02+/-0.18+/-0.02, and Ach(B->eta'pi+)=0.14+/-0.16+/-0.01.

13.25.Hw
11.30.Er
C invariance
B mesons
meson hadronic decay
electron positron: colliding beams
electron positron: annihilation
Upsilon(10570): electroproduction
B: pair production
B: hadronic decay

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