We present the first observation of the decay KS \u2192 \u3c0+ \u3c0 12 e+ e 12 based upon the data collected in 1998 by the NA48 experiment at CERN. We have identified a clean sample of 56 events with negligible background contamination. Using KL \u2192 \u3c0+ \u3c0 12 \u3c00D decays as normalization sample, the branching ratio is measured to be BR(KS \u2192 \u3c0+ \u3c0 12 e+ e 12) = [4.5 \ub1 0.7(stat) \ub1 0.4(syst)] 7 10^ 125 . This result is in good agreement with the theoretical expectations from the mechanism of inner bremsstrahlung
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
A sample of almost 2000 K± → π±π0e+e− rare decays with a background contamination below 3% is observ...
We present the first observation of the decay KS → π+ π− e+ e− based upon the data collected in 1998...
We present the first observation of the decay KS → π+π-e+e- based upon the data collected in 1998 by...
We present the first observation of the decay KS → π+π-e+e- based upon the data collected in 1998 by...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
Using the full data set of the NA48/2 experiment, the decay K \ub1 \u2192 \u3c0 \ub1 e+ e 12 \u3b3 i...
Using the full data set of the NA48/2 experiment, the decay K± → π±e+e−γ is observed for the first t...
Using the full data set of the NA48/2 experiment, the decay K ± → π ± e+ e− γ is observed for the fi...
AbstractUsing the full data set of the NA48/2 experiment, the decay K±→π±e+e−γ is observed for the f...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
A sample of almost 2000 K± → π±π0e+e− rare decays with a background contamination below 3% is observ...
We present the first observation of the decay KS → π+ π− e+ e− based upon the data collected in 1998...
We present the first observation of the decay KS → π+π-e+e- based upon the data collected in 1998 by...
We present the first observation of the decay KS → π+π-e+e- based upon the data collected in 1998 by...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
We present the first observation of the decay K-S -> pi (+)pi (-)e(+)e(-) based upon the data collec...
Using the full data set of the NA48/2 experiment, the decay K \ub1 \u2192 \u3c0 \ub1 e+ e 12 \u3b3 i...
Using the full data set of the NA48/2 experiment, the decay K± → π±e+e−γ is observed for the first t...
Using the full data set of the NA48/2 experiment, the decay K ± → π ± e+ e− γ is observed for the fi...
AbstractUsing the full data set of the NA48/2 experiment, the decay K±→π±e+e−γ is observed for the f...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
Using the full data set of the NA48/2 experiment, the decay K-+/- -> pi(+/-)e(+)e(-)gamma is observe...
A sample of almost 2000 K± → π±π0e+e− rare decays with a background contamination below 3% is observ...