TY  - JOUR
AU  - D'Ambrosio, G.
AU  - Greynat, D.
AU  - Vulvert, G.
PY  - 2013
DA  - 2013//
TI  - Standard model and new physics contributions to K (L) and K (S) into four leptons
T2  - Eur. Phys. J. C
JO  - European Physical Journal C
SP  - 2678 - 10pp
VL  - 73
IS  - 12
PB  - Springer
AB  - We study the K (L) and K (S) decays into four leptons (, , ) where we use a form factor motivated by vector meson dominance, and show the dependence of the branching ratios and spectra from the slopes. A precise determination of short-distance contribution to K (L) ->mu μis affected by our ignorance on the sign of the amplitude but we show a possibility to measure the sign of this amplitude by studying K (L) and K (S) decays in four leptons. We also investigate the effect of New Physics contributions for these decays.
SN  - 1434-6044
UR  - http://arxiv.org/abs/arXiv:1309.5736
UR  - https://doi.org/10.1140/epjc/s10052-013-2678-1
DO  - 10.1140/epjc/s10052-013-2678-1
LA  - English
N1  - WOS:000328342900001
ID  - DAmbrosio_etal2013
ER  -