5 research outputs found
A limit for the mu -> e gamma decay from the MEG experiment
A search for the decay mu -> e gamma, performed at PSI and based on data from
the initial three months of operation of the MEG experiment, yields an upper
limit on the branching ratio of BR(mu -> e gamma) < 2.8 x 10**-11 (90% C.L.).
This corresponds to the measurement of positrons and photons from ~ 10**14
stopped mu-decays by means of a superconducting positron spectrometer and a 900
litre liquid xenon photon detector.Comment: 13 pages, 9 figures. v2: improved estimate of photon reconstruction
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