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Measurement of branching fractions of B decays to K-1(1270)pi and K-1(1400)pi and determination of the CKM angle alpha from B-0 -> a(1)(1260)(+/-)pi(-/+)

Abstract:

We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K1(1270) or K1(1400) meson and a charged pion. The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, correspond to 454×106 BB̄ pairs produced in e+e- annihilation. We measure the branching fractions B(B0→K1(1270)+π-+K1(1400) +π -)=3.1-0.7+0.8×10-5 and B(B+→ K1(1270) 0π++K1(1400) 0π+)=2.9-1.7+2.9×10 -5 (<8.2×10-5 at 90% confidence level), wh...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.81.052009

Authors


Karyotakis, Y More by this author
Poireau, V More by this author
Prencipe, E More by this author
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Journal:
PHYSICAL REVIEW D
Volume:
81
Issue:
5
Publication date:
2010-03-01
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:04f4d7a2-3eb8-479a-a79f-2c1b5cf1d07b
Source identifiers:
211346
Local pid:
pubs:211346
Language:
English

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