THE POLARIZATION OF KNOCK-ON ELECTRONS ARISING FROM SCATTERING BY POLARIZED $mu$-MESONS

Journal Article · Sun Nov 16 04:00:00 EST 1958 · Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B

OSTI ID:4272858

Fivel, D; Fulton, T

An experiment is proposed for the direct measurement of the helicity of mu mesons arising from pi decay by studying the polarization of the high- energy electrons produced in the collision of the polarized mu mesons with unpolarized electrons. Polarization effects become signiflcant only for high- enengy incident mu 's (of the order of a few Bev). The separation of a polarized beam of mu mesons from the decays in flight of high-enengy pi 's is in principle made easier by the fact that the laboratory momenta of mu mesons which are emitted in the forward and backward directions in the pi rest system differ by about 42% as a consequence of the relativistic transformation from the center of mass to the laboratory system. Expressions in the laboratory frame are also given of the cross section for scattering polarized electrons by polarized mu mesons. In the C.M. frame, the results agree with tbose calculnted by Bincer. (auth)

• Research Organization: Johns Hopkins Univ., Baltimore
• NSA Number: NSA-13-008054
• OSTI ID: 4272858
• Journal Information: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 10; ISSN NUCIA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BEAMS
CROSS SECTIONS
DECAY
ELECTRONS
EMISSION
INTERACTIONS
MEASURED VALUES
MESONS
MOMENTUM
MUONS
PHYSICS AND MATHEMATICS
PIONS
POLARIZATION
RELATIVITY THEORY
SCATTERING
SPIN