Improved methods for observing CP violation in B ± → KD and measuring the CKM phase γ

By D. Atwood, I. Dunietz, A. Soni. 2000

204 citations recorded by the source corpus.

Various methods are discussed for obtaining the CKM angle $\ensuremath{\gamma}$ through the interference of the charged B-meson decay channels ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{D}^{0}$ and ${B}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{D}^{0}$ where the ${D}^{0}$ and ${D}^{0}$ decay to common final states. It is found that choosing final states which are not $\mathrm{CP}$ eigenstates can lead to large direct $\mathrm{CP}$ violation which can give significant bounds on $\ensuremath{\gamma}$ without any theoretical assumptions. If two or more modes are studied, $\ensuremath{\gamma}$ may be extracted with a precision on the order of $\ifmmode\pm\else\textpm\fi{}15\ifmmode^\circ\else\textdegree\fi{}$ given $\ensuremath{\sim}{10}^{8}$ B-mesons. We also discuss the case of three body decays of the D where additional information may be obtained from the distribution of the D decay products and consider the impact of $D\overline{D}$ oscillations.

Subfields: Biomedical Engineering, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/f5cc4ef3532fa14b10081be78099c9ada5fb95b7

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In Biomedical Engineering

  1. S. Descotes-Genon
  2. Simone Bifani

In Nuclear and High Energy Physics

  1. David M. Straub
  2. S. Descotes-Genon
  3. Andrzej Buras
  4. T. Hurth
  5. J. Virto
  6. Jure Zupan
  7. P. Paradisi
  8. Farvah Mahmoudi

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