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Journal Articles Journal of High Energy Physics Year : 2013

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

R. Aaij
  • Function : Author
J. He
J. Cogan
O. Leroy
J. Serrano


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.

Dates and versions

in2p3-00733658 , version 1 (19-09-2012)



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, 2013, 01, pp.090. ⟨10.1007/JHEP01(2013)090⟩. ⟨in2p3-00733658⟩
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