Observation of a significant excess of pi(0)pi(0) events in B meson decays

Several 46±13±3 B0→π0π0 events with a significance of 4.2 standard deviations including systematic uncertainties were observed. A branching fraction Β(beta;0→π0π0)=(2.1±0 .6±0.3)X10-6 was measured. The systematic uncertainties from PDF variations and efficiency were combined in quadrature....

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Bibliographic Details
Main Authors:	Aubert, B, Barate, R, Boutigny, D, Gaillard, J, Hicheur, A, Karyotakis, Y, Lees, J, Robbe, P, Tisserand, V, Zghiche, A, Palano, A, Pompili, A, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Ofte, I, Stugu, B, Abrams, G, Borgland, A, Breon, AB, Brown, D, Button-Shafer, J
Format:	Journal article
Published:	2003

Observation of a significant excess of pi(0)pi(0) events in B meson decays

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