Aurelio Bay, Tagir Aushev, Sun Hee Kim, Ji Hyun Kim, Donghyun Kim, Sanjeev Kumar
We present an improved measurement of CP-violating asymmetries in B 0→π+π- decays based on a 78 fb -1 data sample collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider. We reconstruct one neutral B meson as a ...
2003