TY  - JOUR
AU  - BABAR Collaboration (Lees, J. P. et al
AU  - Lopez-March, N.
AU  - Martinez-Vidal, F.
AU  - Oyanguren, A.
PY  - 2011
DA  - 2011//
TI  - Study of dipion bottomonium transitions and search for the h(b)(1P) state
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 011104
EP  - 9pp
VL  - 84
IS  - 1
PB  - Amer Physical Soc
AB  - 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.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1105.4234
UR  - https://doi.org/10.1103/PhysRevD.84.011104
DO  - 10.1103/PhysRevD.84.011104
LA  - English
N1  - WOS:000293182000001
ID  - BABARCollaborationLees_etal2011
ER  -