Study of di-pion Bottomonium Transitions and Search for the h_b(1P) State [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy, 2011.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 8 pages : digital, PDF file
- Additional Creators:
- SLAC National Accelerator Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- We study inclusive di-pion decays using a sample of 108 x 10⁶ Υ(3S) events recorded with the BABAR detector. We search for the decay mode Υ(3S) → π⁺π⁻h{sub b} (1P) and find no evidence for the bottomonium spin-singlet state h{sub b}(1P) in the invariant mass distribution recoiling against the π⁺π⁻ system. Assuming the h{sub b}(1P) mass to be 9.900 GeV/c², we measure the upper limit on the branching fraction Β[Υ(3S) → π⁺π⁻h{sub b}(1P)] < 1.2 x 10⁻⁴, at 90% confidence level. We also investigate the χ{sub bJ}(2P) → π⁺π⁻ χ{sub bJ}(1P), Υ(3S) → π⁺π⁻Υ(2S), and Υ(2S) → π⁺π⁻Υ(1S) di-pion transitions and present an improved measurement of the branching fraction of the Υ(3S) → π⁺π⁻Υ(2S) decay and of the Υ(3S) - Υ(2S) mass difference.
- Report Numbers:
- E 1.99:slac-pub-14470
slac-pub-14470 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
12/09/2011.
"slac-pub-14470"
"arXiv:1105.4234"
Phys.Rev.D84:011104,2011 84 1 ISSN 1550--7998 FT
Lees, J.P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Schroeder, T.; Koch, H.; Mattison, T.S.; Hearty, C.; Milanes, D.A.; Asgeirsson, D.J. - Funding Information:
- AC02-76SF00515
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