Search for B⁰ Decays to Invisible Final States and to νν̅ γ
Name
Aubert-2004-Search for B0 Decays to Invisible Final States.pdf
Size
187.62 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
Sciolla, Gabriella
Yamamoto, R. K.
Cowan, Ray F
Taylor, Frank E
Alternative Title
Search for B0 Decays to Invisible Final States and to νν̅ γ
Date Issued
August 2004
Journal
Physical Review Letters
Publisher
American Physical Society (APS)
Citation
Aubert, B. et al. “Search for B0 Decays to Invisible Final States and to Νν¯γ.” Physical Review Letters 93.9 (2004): Web. 23 Mar. 2012. © 2004 American Physical Society
Version
Final published version
Abstract
We establish upper limits on branching fractions for B⁰ decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for B⁰ decays to νν̅ γ. Within the standard model, these decays have branching fractions that are below current experimental sensitivity, but various models of physics beyond the standard model predict significant contributions from these channels. Using 88.5×10⁶ BB̅ pairs collected at the Υ(4S) resonance by the BABAR experiment at the PEP-II e⁺e⁻ storage ring at the Stanford Linear Accelerator Center, we establish upper limits at the 90% confidence level of 22×10⁻⁵ for the branching fraction of B⁰→invisible and 4.7×10⁻⁵ for the branching fraction of B⁰→νν̅ γ.
MIT Department
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
https://doi.org/10.1103/PhysRevLett.93.091802
