FURTHER SEARCHES FOR THE DECAY $mu$$Yields$e+$gamma$

Journal Article · Thu Feb 01 04:00:00 EST 1962 · Zhur. Eksptl'. i Teoret. Fiz.

OSTI ID:4781331

Alikhanov, A I; Babaev, A I; Balats, M Ya; Kaftanov, V S; Landsberg, L G; Lyubimov, V A; Obukhov, Yu V

The decay of a muon into an electron and a gamma ray was investigated with the aid of a spark chamber and fast electronics. The muons were created by a beam of 70-Mev pi /sup +/ mesons; the beam intensity was 2300 mesons per second. The efficiency for the registration of 53-Mev electrons, resulting from the sought decay mode, was 40%. The efficiency for the detection of gamma quanta of 53 Mev was 15%. The over-all efficiency of the experimental set-up for the detection of mu - yields - e + gamma occurrences, bearing in mind the applicable criteria, was 0.8%. During 66 hr of running time 5.5 x 10/sup 8/ pi / sup +/mesons were registered. In that time six electron--gamma occurrences were obtained with angles between the e and gamma quanta ranging from 174 to 144) deg in the first projection (the direction perpendicular to the beam) and from 180 to 140 deg in the second projection (the depth camera). From the measurements it is concluded that the ratio of the decay sought for to that of the ordinary muon decay is 5 x 10/sup -7/. (TTT)

• Research Organization: Inst. for Experimental and Theoretical Physics, USSR
• NSA Number: NSA-16-017056
• OSTI ID: 4781331
• Journal Information: Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 42
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

DECAY
DETECTION
EFFICIENCY
ELECTRONS
GAMMA RADIATION
MEASURED VALUES
MUONS
PHYSICS
SPARK CHAMBERS