Search for Mu+-]E++E++E- Decay

VA BARANOV, NN CHERNYAVSKY,PG EVTUKHOVICH,AI FILIPPOV,AP FURSOV,AA GLAZOV,NV KHOMUTOV,IV KISEL,AS KORENCHENKO,SM KORENCHENKO,BF KOSTIN,NP KRAVCHUK,NA KUCHINSKY,AS MOISEENKO, DA MZHAVIA,KG NEKRASOV,P POVINEC,J SZARKA,VS SMIRNOV,ZB TSAMALAIDZE,J VANKO, SI YAKOVLEV, FE ZYAZYULYA

Journal of Physics G: Nuclear and Particle Physics（1991）

DUBNA JOINT NUCL RES INST

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摘要

A search with the large solid angle spectrometer (ARES) for the lepton-number-nonconserving decay mu+ --> e+e+e- has been carried out. Cylindrical multiwire proportional chambers and cylindrical scintillation hodoscopes were used. The upper limit for the branching ratio GAMMA (mu+ --> e+e+e-) / GAMMA(mu+ --> e+nu-e-nu-mu) less-than-or-equal-to 3.6 x 10(-11) (90% C.L.) has been derived. The investigation has been performed in the Laboratory of Nuclear Problems, JINR.

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关键词

String Matching,Approximate Matching