Measurement of CP violation parameters in B<[superscript 0] → DK[superscript *0] decays
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PhysRevD.90.112002.pdf
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Author(s)
Aaij, R.
Adeva, B.
Adinolfi, M.
Affolder, A.
Ajaltouni, Z.
Akar, S.
Albrecht, J.
Alessio, F.
Alexander, M.
Ali, S.
Date Issued
December 2014
Journal
Physical Review D
Publisher
American Physical Society
Citation
Aaij, R., et al. "Measurement of CP violation parameters in B<[superscript 0] → DK[superscript *0] decays." Phys. Rev. D 90, 112002 (December 2014). © 2014 CERN, for the LHCb Collaboration
Version
Final published version
Abstract
An analysis of B[superscript 0] → DK[superscript *0] decays is presented, where D represents an admixture of D[superscript 0] and [bar over D][superscript 0] mesons reconstructed in four separate final states: K[superscript -]π[superscript +], π[superscript -]K[superscript +], K[superscript +]K[superscript -] and π[superscript +]π[superscript -]. The data sample corresponds to 3.0 fb[superscript −1] of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of r[subscript B](DK[superscript *0]), the magnitude of the ratio of the amplitudes of the decay B[superscript 0] → DK[superscript +]π[superscript -] with a b → u or a b → c transition, in a Kπ mass region of ±50 MeV/c[superscript 2] around the K[superscript *](892) mass and for an absolute value of the cosine of the K[superscript *0] helicity angle larger than 0.4.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevD.90.112002
