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- W1608691211 abstract "In this paper we try to extract the CKM angle $gamma$ from the new mixed system of $B^+ to pi^+ K^0$ and $B_d^0 to pi^0 K^0$ decays. We also made an update for the constraints on the angle $gamma$ from the observables $R$ and $A_0$. In the parametrization, the SU(2) isospin symmetry of strong interactions has been applied. We found the following results: (a) the measured value of $R$ is now very close to unit, the bound on the angle $gamma$ from the measurement of $R$ is therefore not as promising as before, but some bounds on $gamma$ can still be read off from $r-gamma$ plane if $r$ could be fixed by using an additional input; (b) the measured $R_1$ implies a limit on the strong phase $Delta_1$; (c) due to the contribution from the color allowed electroweak penguin, the minimal value of $R_1$ can be larger than unit. For $epsilon_1=0.2$ and $R_1=1.2$, the range of $65^circ leq gamma leq 115^circ$ will be excluded, such bounds on $gamma$ are interesting and complimentary to the limits from global fit; (d) the dependences of extraction of $gamma$ on the variation of parameters $epsilon_1$, $rho$, $r_1$ and strong phases are also studied." @default.
- W1608691211 created "2016-06-24" @default.
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- W1608691211 date "2002-06-24" @default.
- W1608691211 modified "2023-09-25" @default.
- W1608691211 title "Extraction of the CKM angleγfrom the new “mixed” system ofB+→π+K0andBd0→π0K0decays" @default.
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- W1608691211 doi "https://doi.org/10.1103/physrevd.65.114017" @default.
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