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arXiv · 0712.3751

Constraint on rho-bar, eta-bar from B to K*pi

Michael Gronau·Dan Pirjol·Amarjit Soni·Jure Zupan
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Abstract

A linear CKM relation, $\barη= \tanΦ_{3/2}(\barρ-0.24\pm 0.03)$, involving a $1σ$ range for $Φ_{3/2}$, $20^\circ < Φ_{3/2} < 115^\circ$, is obtained from $B^0\to K^*π$ amplitudes measured recently in Dalitz plot analyses of $B^0\to K^+π^-π^0$ and $B^0(t)\to K_Sπ^+π^-$. This relation is consistent within the large error on $Φ_{3/2}$ with other CKM constraints which are unaffected by new $b\to s\bar q q$ operators. Sensitivity of the method to a new physics contribution in the $ΔS=ΔI=1$ amplitude is discussed.

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Michael Gronau, Dan Pirjol, Amarjit Soni, Jure Zupan. 2008-06-17. Constraint on rho-bar, eta-bar from B to K*pi. https://doi.org/10.1103/physrevd.77.057504

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