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Improved Limits on $B^{0}$ Decays to Invisible $(+gamma)$ Final States [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Science, 2013.
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. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
We establish improved upper limits on branching fractions for B° decays to final states where the decay products are purely invisible (i.e., no observable final state particles) and for final states where the only visible product is a photon. Within the Standard Model, these decays have branching fractions that are below the current experimental sensitivity, but various models of physics beyond the Standard Model predict significant contributions for these channels. Using 471 million B{bar B} pairs collected at the Υ (4S) resonance by the BABAR experiment at the PEP-II e⁺e⁻ storage ring at the SLAC National Accelerator Laboratory, we establish upper limits at the 90% confidence level of 2.4 x 10⁻⁵ for the branching fraction of B° → invisible and 1.7 x 10⁻⁵ for the branching fraction of B° → invisible + γ.
Report Numbers
E 1.99:slac-pub-15071
slac-pub-15071
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/2013.
"slac-pub-15071"
"arXiv:1206.2543"
Phys.Rev.D86:051105,2012 FT
Lees, J.P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Schroeder, T.; Blinov, V.E.; Koch, H.; Mattison, T.S.; Hearty, C.; Asgeirsson, D.J.; McKenna, J.A.; So, R.Y.; Brown, David Nathan; Khan, A.
Funding Information
AC02-76SF00515
View MARC record | catkey: 14705989