Search for the rare decay K^0_S -> mu+ mu-

Abstract : A search for the decay KS -> mu+ mu- is performed, based on a data sample of 1.0 fb^-1 of pp collisions at \sqrt{s}=7 TeV collected by the LHCb experiment at the Large Hadron Collider. The observed number of candidates is consistent with the background-only hypothesis, yielding an upper limit of BR(KS -> mu+ mu-) < 11 (9) x 10^-9 at 95 (90)% confidence level. This limit is a factor of thirty below the previous measurement.
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Journal articles
Journal of High Energy Physics, Institute of Physics (IOP), 2013, 01, pp.090. <10.1007/JHEP01(2013)090>


http://hal.in2p3.fr/in2p3-00733658
Contributor : Françoise Marechal <>
Submitted on : Wednesday, September 19, 2012 - 10:00:54 AM
Last modification on : Monday, February 11, 2013 - 4:00:11 PM

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R. Aaij, S. Barsuk, O. Callot, J. He, B. Jean-Marie, et al.. Search for the rare decay K^0_S -> mu+ mu-. Journal of High Energy Physics, Institute of Physics (IOP), 2013, 01, pp.090. <10.1007/JHEP01(2013)090>. <in2p3-00733658>

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