Evidence for the decay B-0 -˃ eta pi(0)

Title
Evidence for the decay B-0 -˃ eta pi(0)
Authors
천병구
Keywords
B MESON DECAYS; BELLE DETECTOR; PACKAGE; SEARCH; ETA'
Issue Date
2015-07
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v. 92, NO 1, Page. 11101-11101
Abstract
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.
URI
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.92.011101http://hdl.handle.net/20.500.11754/26207
ISSN
2470-0010; 2470-0029
DOI
http://dx.doi.org/10.1103/PhysRevD.92.011101
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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