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Evidence for charged B meson decays to a(1)(+/-)(1260)pi(0) and a(1)(0)(1260)pi(+/-)

Abstract:
We present measurements of the branching fractions for the decays B±→a1±(1260)π0 and B±→a10(1260)π± from a data sample of 232×106 BB̄ pairs produced in e+e- annihilation through the Υ(4S) resonance. We measure the branching fraction B(B±→a1±(1260)π0)×B(a1±(1260) →π-π+π±)=(13.2±2.7±2.1)×10-6 with a significance of 4.2σ, and the branching fraction B(B±→ a10(1260)π±)×B(a10(1260)→π-π+π0)=(20.4±4. 7±3.4)×10-6 with a significance of 3.8σ, where the first error quoted is statistical and the second is systematic. © 2007 The American Physical Society.
Publication status:
Published

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Journal:
PHYSICAL REVIEW LETTERS
Volume:
99
Issue:
26
Publication date:
2007-12-31
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:4fb760cc-053c-45fb-a1fc-c0f012606a4f
Source identifiers:
211317
Local pid:
pubs:211317
Language:
English

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