Exploring CP violation with $B_s^0 \to \bar{D^0} φ$ decays

Details Exploring CP violation with $B_s^0 \to \bar{D^0} φ$ decays Exploring CP violation with $B_s^0 \to \bar{D^0} φ$ decays

2001-12-03

arxiv.org/abs/hep-ph/0112016v2

Phys.Rev. D65 (2002) 056015

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, LaTeX, 2 references added, Minor changes in the text, to appear in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.65.056015

We note that it is possible to determine the weak phase \gamma from the time dependent measurements of the decays $B_s^0(t) (\bar B_s^0 (t)) \to \bar D^0 \phi without any hadronic uncertainties. These decays are described by the color suppressed tree diagrams and hence are free from the penguin pollutions. We further demonstrate that \gamma can also be extracted with no hadronic uncertainties from an angular analysis of corresponding vector vector modes, $B_s^0(t) (\bar B_s^0 (t)) \to \bar D^{* 0} \phi $. Although the branching ratios for these decay modes are quite small $ {\cal O} (10^{-5}-10^{-6})$, the strategies presented here appear to be particularly interesting for the "second generation" experiments at hadronic B factories.

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