Exploring CP violation with $B_s^0\to \overline{D^0}\varphi$ decays

Abstract

We note that it is possible to determine the weak phase γfrom the time dependent measurements of the decays $B_s^0(t)({\bar{B}}_s^0(t))\to {\bar{D}}^0\varphi withoutanyhadronicuncertainties.Thesedecaysaredescribedbythecolorsuppressedtreediagramsandhencearefreefromthepenguinpollutions.Wefurtherdemonstratethat\gamma canalsobeextractedwithnohadronicuncertaintiesfromanangularanalysisofcorrespondingvectorvectormodes,$B_s^0(t) (\bar B_s^0 (t)) \to \bar D^{* 0} ϕ$.Althoughthebranchingratiosforthesedecaymodesarequitesmall$ {\cal O} (10^{-5}-10^{-6})$, the strategies presented here appear to be particularly interesting for the "second generation" experiments at hadronic B factories.

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

References in corpus (4)

• 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

Cited by in corpus (4)

• Possibility of extracting the weak phase $\gamma$ from ${\Lambda }_b\to \Lambda D^0$ decays
• Determining CP violation angle $\gamma$ with B decays into a scalar/tensor meson
• Determining the CKM angle gamma with B_c decays
• Weak phase information from the color suppressed B_d^0 -> D^{*0} K^{*0} modes