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- W2800330710 abstract "The recent measurements of the color-suppressed modes $bar B^0to D^{(*)0}pi^0$ imply non-vanishing relative final-state interaction (FSI) phases among various $bar Bto Dpi$ decay amplitudes. Depending on whether or not FSIs are implemented in the topological quark-diagram amplitudes, two solutions for the parameters $a_1$ and $a_2$ are extracted from data using various form-factor models. It is found that $a_2$ is not universal: $|a_2(Dpi)|= 0.40-0.55$ and $|a_2(D^*pi)|= 0.25-0.35$ with a relative phase of order $(50-55)^circ$ between $a_1$ and $a_2$. If FSIs are not included in quark-diagram amplitudes from the outset, $a_2^{eff}/a_1^{eff}$ and $a_2^{eff}$ will become smaller. The large value of $|a_2(Dpi)|$ compared to $|a_2^{eff}(Dpi)|$ or naive expectation implies the importance of long-distance FSI contributions to color-suppressed internal $W$-emission via final-state rescatterings of the color-allowed tree amplitude." @default.
- W2800330710 created "2018-05-17" @default.
- W2800330710 creator A5003248254 @default.
- W2800330710 date "2001-08-10" @default.
- W2800330710 modified "2023-09-24" @default.
- W2800330710 title "Implications of Recent $overline{B}^0to D^{(*)0}X^0$ Measurements" @default.
- W2800330710 hasPublicationYear "2001" @default.
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