The longitudinal muon polarization in K(L) ---> mu+ mu-
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The longitudinal muon polarization in K(L) ---> mu+ mu-

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The longitudinal muon polarization in K(L) ---> mu+ mu-

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Ecker, Gerhard; Pich Zardoya, Antonio Perfil
This document is a artículoDate1991

Este documento está disponible también en : http://hdl.handle.net/10550/42277
From a leading-order calculation of K1(0) --> gamma*-gamma* --> l+ l- in chiral perturbation theory, the longitudinal muon polarization in the decay K(L) --> mu+-mu- is found to be approximately 2 X 10(-3) in the standard model. The relative branching ratios GAMMA(K(S) --> l+ l-)/GAMMA(K(S) --> 2-gamma) are predicted as 2 x 10(-6) (l = mu) and 8 X 10(-9) (l = e), respectively.

    Ecker, Gerhard Pich Zardoya, Antonio 1991 The longitudinal muon polarization in K(L) ---> mu+ mu- Nuclear Physics B 366 1 189 205
http://dx.doi.org/10.1016/0550-3213(91)90056-4

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