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First Observation and Amplitude Analysis of theB⁻ →D⁺K⁻ π⁻ decay

Author(s)
LHCB Collaboration; Counts, Ian Thomas Hunt; Ilten, Philip J; Williams, Michael
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Abstract
The B⁻ →D⁺K⁻ π⁻ decay is observed in a data sample corresponding to 3.0 fb⁻1 of pp collision data recorded by the LHCb experiment during 2011 and 2012. Its branching fraction is measured to be B(B⁻ →D⁺K⁻ π⁻ )=(7.31±0.19±0.22±0.39)×10⁻⁵ where the uncertainties are statistical, systematic and from the branching fraction of the normalization channel B⁻→D⁺π⁻ π⁻ , respectively. An amplitude analysis of the resonant structure of the B⁻ →D⁺K⁻ π⁻ decay is used to measure the contributions from quasi-two-body B⁻ →D*[subscript 0](2400)0K⁻ , B⁻ →D*[subscript 2](2460)⁰K⁻ , and B⁻ →D*[subscript J](2760)0K⁻ decays, as well as from nonresonant sources. The D*[subscript J](2760)⁰ resonance is determined to have spin 1.
Date issued
2015-05
URI
http://hdl.handle.net/1721.1/116251
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society (APS)
Citation
Aaij, R. et al. “First Observation and Amplitude Analysis of theB⁻ →D⁺K⁻ π⁻ decay.” Physical Review D 91, 9 (May 2015): 092002 © 2015 CERN, for the LHCb Collaboration
Version: Final published version
ISSN
2470-0010
2470-0029

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