Search for invisible decays of the (1S)
Name
Auber-2009-Search for Invisible Decays of the Υ.pdf
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209.76 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Zhao, M.
Yamamoto, R. K.
Sciolla, Gabriella
Henderson, Shawn Wesley
Dujmic, Denis
Spitznagel, Michael A
Fisher, Peter H
Cowan, Ray F
Date Issued
September 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
BABAR Collaboration et al. “Search for Invisible Decays of the Upsilon (1S).” Physical Review Letters 103.25 (2009): 251801. © 2009 The American Physical Society
Version
Final published version
Abstract
We search for invisible decays of the Υ(1S) meson using a sample of 91.4×10[superscript 6] Υ(3S) mesons collected at the BABAR/PEP-II B factory. We select events containing the decay Υ(3S)→π[superscript +]π[superscript -]Υ(1S) and search for evidence of an undetectable Υ(1S) decay recoiling against the dipion system. We set an upper limit on the branching fraction B(Υ(1S)→invisible)<3.0×10[superscript -4] at the 90% confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.251801
