Possibility of extracting the weak phase $\gamma$ from ${\Lambda }_b\to \Lambda D^0$ decays

Abstract

We explore the possibility of extracting the weak phase $\gamma$ from pure tree decays ${\Lambda }_b\to \Lambda (D^0,\overline{D^0},D_{CP}^0)$ in a model independent way. The CP violating weak phase $\gamma$ can be determined cleanly, without any hadronic uncertainties, as these decay modes are free from the penguin pollutions. Furthermore, neither tagging nor time dependent studies are required to extract the angle $\gamma$ with these modes.

12 pages, LaTex, Minor changes in the text, version to appear in Phys. Rev. D

References in corpus (6)

• Observation of Large CP Violation in the Neutral B Meson System
• Observation of CP violation in the B^0 meson system
• Measurement of CP-violating asymmetries in B0 decays to CP eigenstates
• Measurement of the CP Violation Parameter sin(2phi_1) in B^0_d Meson Decays
• Determination of the angle $\gamma$ from nonleptonic $B_c\to D_s{D}^0$ decays
• Exploring CP violation with $B_s^0\to \overline{D^0}\varphi$ decays

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• Implications of LHCb measurements and future prospects
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• Study of $B^{-}\to D{K}^{-}{\pi }^{+}{\pi }^{-}$ and $B^{-}\to D{\pi }^{-}{\pi }^{+}{\pi }^{-}$ decays and determination of the CKM angle $\gamma$
• Determining the CKM angle gamma with B_c decays
• Observation of the suppressed ${\Lambda }_b^0\to Dp{K}^{-}$ decay with $D\to K^{+}{\pi }^{-}$ and measurement of its $CP$ asymmetry
• Heavy Baryonic Decays of Λ_b \to Λη^{(\prime)} and Nonspectator Contribution
• Analysis of angular distribution asymmetries and the associated $CP$ asymmetries in three-body decays of bottom baryons
• Searching for $CP$ violation through two-dimensional angular distributions in four-body decays of bottom and charmed baryons
• Measuring $\mathbf{CP}$ violating phase in beauty baryon decays