Author/Authors :
Appel، نويسنده , , R. and Atoyan، نويسنده , , G.S. and Bassalleck، نويسنده , , B. and Battiste، نويسنده , , E. and Bergman، نويسنده , , D.R. and Bِsiger، نويسنده , , K. and Brown، نويسنده , , D.N. and Castillo، نويسنده , , V. V. Cheung، نويسنده , , Rajendra N. and Dhawan، نويسنده , , S. and Do، نويسنده , , Badi H. and Egger، نويسنده , , J. and Eilerts، نويسنده , , S.W. and Felder، نويسنده , , C. and Fischer، نويسنده , , H. and Gach، نويسنده , , H.M. and Gi، نويسنده ,
Abstract :
The detector of the E865-collaboration at the Brookhaven-AGS described here combines a magnetic spectrometer for the charged decay products of 6 GeV/c K+ with excellent electromagnetic calorimetry and efficient particle identification for electrons and muons. Its high-resolution, large acceptance and high rate capability made it well suited for the study of extremely rare or forbidden decays with multi-leptonic final states such as K+→π+μ+e−, K+→π+l+l−, K+→l+νle−e+ and K+→π+π−e+νe down to branching ratios below 10−11 in an intense K+ beam (≈108 per AGS spill).
Keywords :
Charged particle identification , Cherenkov counters , Rare kaon decays , Electromagnetic calorimeters , Magnetic spectrometers
