%0 Journal Article
%T Evidence for the h(b)(1P) meson in the decay Y(3S) -> pi(0)h(b)(1P)
%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 9
%I Amer Physical Soc
%@ 1550-7998
%G English
%F BABARCollaborationLees_etal2011
%O WOS:000296890600001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=820), last updated on Mon, 19 Dec 2011 13:54:22 +0000
%X Using a sample of 122 x 10(6) Y(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC, we search for the h(b)(1P) spin-singlet partner of the P-wave X(bJ)(1P) states in the sequential decay Y(3S) -> pi(0)h(b) (1P), hb(1P) -> gamma eta(b)(1S). We observe an excess of events above background in the distribution of the recoil mass against the pi(0) at mass 9902 +/- 4(stat) +/- 2(syst) MeV/c(2). The width of the observed signal is consistent with experimental resolution, and its significance is 3.1 sigma, including systematic uncertainties. We obtain the value (4.3 +/- 1.1(stat) +/- 0.9(syst) x 10(-4) for the product branching fraction B(Y(3S) -> pi(0)h(b)) XB (h(b) -> gamma eta(b))
%R 10.1103/PhysRevD.84.091101
%U http://arxiv.org/abs/1102.4565
%U https://doi.org/10.1103/PhysRevD.84.091101
%P 091101-8pp