Publikace na Matematicko-fyzikální fakulta |
2013
Abstrakt
Using 121.4 fb(-1) of data collected with the Belle detector at the Y(5S) resonance at the KEKB asymmetric-energy e(+)e(-) collider, we report evidence for the (B) over bar (0)(s) -> Lambda(+)(c)(Lambda) over bar pi(-) decay mode with a measured branching fraction (3.6 +/- 1.1[stat](-0.5)(+0.3)[syst.] +/- 0.9[Lambda(+)(c)] +/- 0.7[N-(B) over bar s0]) x 10(-4) and a significance of 4.4 standard deviations. This is the first evidence for a baryonic B-s(0) decay. (C) 2013 Elsevier B.V.
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