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

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

2007-12-21

arxiv.org/abs/0712.3751v2

Phys.Rev.D77:057504,2008; Addendum-ibid.D78:017505,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 4 figures. After publication of this paper in Phys. Rev. D 77, 057504 (2008) the results of Ref. [6] were corrected.

Scientific paper

10.1103/PhysRevD.77.057504

A linear CKM relation, $\bar\eta= \tan\Phi_{3/2}(\bar\rho-0.24\pm 0.03)$, involving a $1\sigma$ range for $\Phi_{3/2}$, $20^\circ < \Phi_{3/2} < 115^\circ$, is obtained from $B^0\to K^*\pi$ amplitudes measured recently in Dalitz plot analyses of $B^0\to K^+\pi^-\pi^0$ and $B^0(t)\to K_S\pi^+\pi^-$. This relation is consistent within the large error on $\Phi_{3/2}$ 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 $\Delta S=\Delta I=1$ amplitude is discussed.

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