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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Khan, A | - |
dc.contributor.author | Aubert, B | - |
dc.contributor.author | Bona, M | - |
dc.contributor.author | Boutigny, D | - |
dc.contributor.author | Karyotakis, Y | - |
dc.coverage.spatial | 7 | en |
dc.date.accessioned | 2008-01-09T16:45:43Z | - |
dc.date.available | 2008-01-09T16:45:43Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Physical Review Letters 100(5): 051803, Sep 2007 | en |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/1538 | - |
dc.description.abstract | We present branching fraction measurements of the decays B^{+} -> a1(1260)^{+} K^{0} and B^{0} to a1(1260)^{-} K^{+} with a1(1260)^{+} -> pi^{-} pi^{+} pi^{+}. The data sample corresponds to 383 million B B-bar pairs produced in e^{+}e^{-} annihilation through the Y(4S) resonance. We measure the products of the branching fractions: B(B^{+}-> a1(1260)^{+} K^{0})B(a1(1260)^{+} -> pi^{-} pi^{+} pi^{+}) = (17.4 +/- 2.5 +/- 2.2) 10^{-6} B(B^{0}-> a1(1260)^{-} K^{+})B(a1(1260)^{-} -> pi^{+} pi^{-} pi^{-}) = (8.2 +/- 1.5 +/- 1.2) 10^{-6}. We also measure the charge asymmetries A_{ch}(B^{+} -> a1(1260)^{+} K^{0})= 0.12 +/- 0.11 +/- 0.02 and A_{ch}(B^{0} -> a1(1260)^{-} K^{+})= -0.16 +/- 0.12 +/- 0.01. The first uncertainty quoted is statistical and the second is systematic. | en |
dc.format.extent | 188190 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | American Physical Society | en |
dc.title | Observation of B+ ---> a(1)+(1260) K0 and B0 ---> a(1)-(1260) K+ | en |
dc.type | Preprint | en |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Research Papers |
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0709.4165v1.pdf | 183.78 kB | Adobe PDF | View/Open |
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