We present a new technique to extract information on the Unitarity Triangle from the study of B -> K pi pi Dalitz plots. Using the sensitivity of Dalitz analyses to the absolute values and the phases of decay amplitudes and isospin symmetry, we obtain a new constraint on the elements of the CKM matrix. We discuss in detail the role of electroweak penguins and outline future prospects.
@article{arxiv.hep-ph/0601233,
title = {New Bounds On The CKM Matrix From B -> K pi pi Dalitz Plot Analyses},
author = {M. Ciuchini and M. Pierini and L. Silvestrini},
journal= {arXiv preprint arXiv:hep-ph/0601233},
year = {2007}
}
Comments
5 pages, 1 figure. v2: extended discussion of electroweak penguins. v3: error in the treatment of electroweak penguins corrected. v4: misprint pointed out in hep-ph/0608243 corrected