Publication

Improved measurement of CP-violating parameters in B→ρ+ρ- decays

Olivier Schneider
2007
Journal Articles

Abstract

We present a measurement of the CP-violating asymmetry in B0→ρ+ρ- decays using 535×106 BB̄ pairs collected with the Belle detector at the KEKB e+e- collider. We measure CP-violating coefficients A=0.16±0.21(stat)±0.08(syst) and S=0.19±0. 30(stat)±0.08(syst). These values are used to determine the unitarity triangle angle 2 using an isospin analysis; the solution consistent with the standard model lies in the range 54°< 2

Official source

https://infoscience.epfl.ch/entities/publication/37a8f7d9-1ea8-4d00-a5fa-acc7e76108dd

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Improved measurement of CP-violating parameters in B→ρ+ρ- decays

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