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research article
Evidence for the decay B-0 -> eta pi(0)
2015
We report a search for the charmless hadronic decay B-0 -> eta pi(0) with a data sample corresponding to an integrated luminosity of 694 fb(-1) containing 753 x 10(6) BB pairs. The data were collected by the Belle experiment running on the Upsilon(4S) resonance at the KEKB e(+)e(-) collider. We measure a branching fraction B(B-0 > eta pi(0)) = (4.1(-1.5-0.7)(+1.75+0.5)) x 10(-7), where the first unceminty is statistical and the second is systematic. Our measurement gives an upper limit of beta(B-0 -> n pi(0)) < 6.5 x 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.
Type
research article
Web of Science ID
WOS:000357638300001
Authors
Pal, B.
•
Schwartz, A. J.
•
Abdesselam, A.
•
Adachi, I.
•
Aihara, H.
•
Al Said, S.
•
Arinstein, K.
•
Asner, D. M.
•
Aulchenko, V.
•
Aushev, T.
Corporate authors
Belle Collaboration
Publication date
2015
Publisher
Published in
Volume
92
Issue
1
Article Number
011101(R)
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
September 28, 2015
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