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66966 |
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|a dc
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|a Cowan, Ray Franklin
|e author
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|a Massachusetts Institute of Technology. Laboratory for Nuclear Science
|e contributor
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|a Cowan, Ray Franklin
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|a Cowan, Ray Franklin
|e contributor
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|a Dujmic, Denis
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|a Sciolla, Gabriella
|e contributor
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|a Dujmic, Denis
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|a Sciolla, Gabriella
|e author
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|a Study of dipion bottomonium transitions and search for the h(b)(1P) state
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|b American Physical Society,
|c 2011-11-08T19:06:23Z.
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| 856 |
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|z Get fulltext
|u http://hdl.handle.net/1721.1/66966
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|a We study inclusive dipion decays using a sample of 108×10[superscript 6]Υ(3S) events recorded with the BABAR detector. We search for the decay mode Υ(3S)→π[superscript +]π[superscript -]h[subscript b](1P) and find no evidence for the bottomonium spin-singlet state h[subscript b](1P) in the invariant mass distribution recoiling against the π[superscript +]π[superscript -] system. Assuming the h[subscript b](1P) mass to be 9.900 GeV/c[superscript 2], we measure the upper limit on the branching fraction B[Υ(3S)→π[superscript +]π[superscript -]h[subscript b](1P)]<1.2×10[superscript -4], at 90% confidence level. We also investigate the χ[subscript bj](2P)→π[superscript +]π[superscript -]χ[subscript bJ](1P), Υ(3S)→π[superscript +]π[superscript -]Υ(2S), and Υ(2S)→π[superscript +]π[superscript -]Υ(1S) dipion transitions and present an improved measurement of the branching fraction of the Υ(3S)→π[superscript +]π[superscript -]Υ(2S) decay and of the Υ(3S)-Υ(2S) mass difference.
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|a United States. Dept. of Energy
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|a National Science Foundation (U.S.)
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|a Natural Sciences and Engineering Research Council of Canada (NSERC)
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|a France. Commissariat à l'énergie atomique
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|a Institut national de physique nucléaire et de physique des particules
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|a Germany. Federal Ministry of Education and Research (BMBF)
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|a Deutsche Forschungsgemeinschaft (DFG)
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|a Istituto nazionale di fisica nucleare (INFN)
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|a Foundation for Fundamental Research on Matter (Netherlands)
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|a Research Council of Norway
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|a Ministry of Education and Science of the Russian Federation
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|a Spain. Ministerio de Ciencia e Innovacio´n (MICINN)
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|a Science and Technology Facilities Council (Great Britain)
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|a Marie Curie International Fellowship
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|a Alfred P. Sloan Foundation
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|a en_US
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|a Article
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|t Physical Review D
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