%0 Journal Article
%T Study of dipion bottomonium transitions and search for the h(b)(1P) state
%A BABAR Collaboration (Lees, J. P. et al
%A Lopez-March, N.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%J Physical Review D
%D 2011
%V 84
%N 1
%I Amer Physical Soc
%@ 1550-7998
%G English
%F BABARCollaborationLees_etal2011
%O WOS:000293182000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=710), last updated on Sat, 13 Aug 2011 13:15:39 +0000
%X We study inclusive dipion decays using a sample of 108 x 10(6)Y(3S) events recorded with the BABAR detector. We search for the decay mode Y(3S) -> pi(+)pi(-) h(b)(1P) and find no evidence for the bottomonium spin-singlet state h(b)(1P) in the invariant mass distribution recoiling against the pi(+)pi(-) system. Assuming the h(b)(1P) mass to be 9.900 GeV/c(2), we measure the upper limit on the branching fraction B[Y(3S) -> pi(+)pi(-) h(b)(1P)] < 1.2 x 10(-4), at 90% confidence level. We also investigate the chi(bJ)(2P) -> pi(+)pi(-) chi(bJ)(1P), Y(3S) -> pi(+)pi(-) Y(2S), and Y(2S) -> pi(+)pi(-) Y(1) dipion transitions and present an improved measurement of the branching fraction of the Y(3S) -> pi(+)pi(-) Y(2S) decay and of the Y(3S) – Y(2S) mass difference.
%R 10.1103/PhysRevD.84.011104
%U http://arxiv.org/abs/1105.4234
%U https://doi.org/10.1103/PhysRevD.84.011104
%P 011104-9pp