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Search for the rare decay K 0 S →μ + μ −

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Original languageEnglish
Article number90
Number of pages17
JournalJournal of High Energy Physics
Issue number1
Early online date18 Sep 2012
Publication statusPublished - Jan 2013


A search for the decay K 0 S →μ + μ − is performed, based on a data sample of 1.0 fb−1 of pp collisions at s √ =7TeV 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 B(K 0 S →μ + μ − ) < 11(9) × 10−9 at 95 (90)% confidence level. This limit is a factor of thirty below the previous measurement.

    Research areas

  • Hadron, Hadron Scattering

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