%0 Journal Article
%T Search for the decay B-0 -> gamma gamma
%A BABAR Collaboration (del Amo Sanchez, P. et al
%A Lopez-March, N.
%A Martinez-Vidal, F.
%A Milanes, D. A.
%A Oyanguren, A.
%J Physical Review D
%D 2011
%V 83
%N 4
%I Amer Physical Soc
%@ 1550-7998
%G English
%F BABARCollaborationdelAmoSanchez_etal2011
%O ISI:000287035200001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=572), last updated on Mon, 11 Apr 2011 17:00:46 +0000
%X We report the result of a search for the rare decay B-0 -> gamma gamma in 426 fb(-1) of data, corresponding to 226 x 10(6) B-0(B) over bar (0) pairs, collected on the Y(4S) resonance at the PEP-II asymmetric-energy e(+)e(-) collider using the BABAR detector. We use a maximum likelihood fit to extract the signal yield and observe 21(-12)(+13) signal events with a statistical significance of 1.8 sigma. This corresponds to a branching fraction B(B-0 -> gamma gamma) = (1.7 +/- 1.1(stat.) +/- 0.2(syst.)) X 10(-7). Based on this result, we set a 90% confidence level upper limit of B(B-0 -> gamma gamma) < 3.2 X 10(-7).
%R 10.1103/PhysRevD.83.032006
%U http://arxiv.org/abs/arXiv:1010.2229
%U https://doi.org/10.1103/PhysRevD.83.032006
%P 032006-11pp