Evidence for the decay $B^{0} \to \eta \pi^0$ - INSPIRE

DataBETA

Evidence for the decay $B^{0} \to \eta \pi^0$

Belle

Collaboration

•

B. Pal
(
- Cincinnati U.
)

Apr 3, 2015

7 pages

Published in:

Phys.Rev.D 92 (2015) 1, 011101

Published: Jul 9, 2015

e-Print:

1504.00957 [hep-ex]

DOI:

10.1103/PhysRevD.92.011101

PDG:

{{\mathit B}^{0}}

\rightarrow

{{\mathit \eta}}{{\mathit \pi}^{0}}

Report number:

Belle-Preprint-2015-2,
UNIVERSITY-OF-CINCINNATI-PREPRINT-UCHEP-15-02,
KEK-Preprint-2014-45,
UCHEP-Preprint-2015-2,
KEK-PREPRINT-2014-45

Experiments:

KEK-BF-BELLE

View in:

reference search12 citations

Citations per year

Abstract: (APS)

We report a search for the charmless hadronic decay B0→ηπ0 with a data sample corresponding to an integrated luminosity of 694 fb−1 containing 753×106 BB¯ pairs. The data were collected by the Belle experiment running on the Υ(4S) resonance at the KEKB e+e- collider. We measure a branching fraction B(B0→ηπ0)=(4.1-1.5-0.7+1.7+0.5)×10-7, where the first uncertainty is statistical and the second is systematic. Our measurement gives an upper limit of B(B0→ηπ0)<6.5×10-7 at 90% confidence level. The signal has a significance of 3.0 standard deviations and constitutes the first evidence for this decay mode.

Note:

11 pages, 3 figures, 2 tables, submitted to Physical Review D(R)

13.25.Hw
11.30.Er
12.15.Hh
experimental results
B0: hadronic decay
branching ratio
Upsilon(10570)
statistical
decay modes
BELLE

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Figures(11)

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