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Search for the decay B[0 over s] → D[superscript *∓]π[superscript ±]

Author(s)
Williams, Michael
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Abstract
A search for the decay B[0 over s] → D[superscript *∓]π[superscript ±] is presented using a data sample corresponding to an integrated luminosity of 1.0  fb[superscript −1] of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as B[0 over s] → π[superscript +]π[superscript −] and B[0 over s] → D[bar over D]. Systematic uncertainties are minimized by using B[superscript 0] → D[superscript *∓]π[superscript ±] as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(B[0 over s] → D[superscript *∓]π[superscript ±]) < 6.1(7.8) × 10[superscript −6] at 90% (95%) confidence level.
Date issued
2013-04
URI
http://hdl.handle.net/1721.1/97444
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R., C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, Z. Ajaltouni, et al. “Search for the Decay B[0 over s] → D[superscript *∓]π[superscript ±].” Phys. Rev. D 87, no. 7 (April 2013). © 2013 CERN, for the LHCb Collaboration
Version: Final published version
ISSN
1550-7998
1550-2368

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