%0 Journal Article
%T Observation of inclusive D*(+/-) production in the decay of Y(1S)
%A BABAR Collaboration (Aubert, B. et al
%A Azzolini, V.
%A Lopez-March, N.
%A Martinez-Vidal, F.
%A Milanes, D. A.
%A Oyanguren, A.
%J Physical Review D
%D 2010
%V 81
%N 1
%I Amer Physical Soc
%@ 1550-7998
%G English
%F BABARCollaborationAubert_etal2010
%O ISI:000274002800002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=502), last updated on Tue, 22 Mar 2011 14:41:57 +0000
%X We present a study of the inclusive D*(+/-) production in the decay of Y(1S) using (98.6 +/- 0.9) X 10(6) Y(2S) mesons collected with the BABAR detector at the Y(2S) resonance. Using the decay chain Y(2S) -> pi(+)pi Y-(1S), Y(1S) -> D*X-+/-, where X is unobserved, we measure the branching fraction B[Y(1S) -> D*X-+/-] = (2.52 +/- 0.13(stat) +/- 0.15(syst)% and the D*(+/-) momentum distribution in the rest frame of the Y(1S). We find evidence for an excess of D*+/- production over the expected rate from the virtual photon annihilation process Y(1S) -> gamma* -> c (c) over bar -> D*X-+/-.
%R 10.1103/PhysRevD.81.011102
%U http://arxiv.org/abs/0911.2024
%U https://doi.org/10.1103/PhysRevD.81.011102
%P 011102-8pp