TY - JOUR
T1 - Calculating phases between B→K*π amplitudes
AU - Gronau, Michael
AU - Pirjol, Dan
AU - Rosner, Jonathan L.
PY - 2010/5/20
Y1 - 2010/5/20
N2 - A phase ΔΦ between amplitudes for B0→K *0π0 and B0→K*+π - plays a crucial role in a method for constraining Cabibbo-Kobayashi-Maskawa parameters. We present a general argument for destructive interference between amplitudes for B0→K* +π- and B0→K*0π0 forming together a smaller I(K*π)=3/2 amplitude. Applying flavor SU(3) and allowing for conservative theoretical uncertainties, we obtain lower limits on ΔΦ and its charge conjugate. Values of these two phases favored by the BABAR collaboration are in good agreement with our bounds.
AB - A phase ΔΦ between amplitudes for B0→K *0π0 and B0→K*+π - plays a crucial role in a method for constraining Cabibbo-Kobayashi-Maskawa parameters. We present a general argument for destructive interference between amplitudes for B0→K* +π- and B0→K*0π0 forming together a smaller I(K*π)=3/2 amplitude. Applying flavor SU(3) and allowing for conservative theoretical uncertainties, we obtain lower limits on ΔΦ and its charge conjugate. Values of these two phases favored by the BABAR collaboration are in good agreement with our bounds.
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U2 - 10.1103/PhysRevD.81.094026
DO - 10.1103/PhysRevD.81.094026
M3 - Article
AN - SCOPUS:77953140590
SN - 1550-7998
VL - 81
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
M1 - 094026
ER -