Theoretical Considerations on the Disintegration $pi$$Yields$$mu$; CONSIDERATIONS THEORIQUES SUR LA DESINTEGRATION $pi$$Yields$$mu$

Technical Report · Thu Jan 01 04:00:00 EST 1959

OSTI ID:4226003

Titeica, S

BS>Recent experimental data indicate that the angular distribution of muons from pion decay is not isotropic. The implications of this data would contradict the commonly accepted hypothesis according to which the pion has zero spin. The angular distribution of muons is treated theoretically for the case of non-zero spin of the pion. The calculations are made under the assumption that the pion has an unknown but fixed spin and an arbitrary polarization state. It disintegrates into two fermions with spin 1/2 and the disintegration occurs at rest. The laws of conservation of energy, momentum, and kinetic moment are valid. It is assumed that after the disintegration the fermions will have an energy equal to the rest energy of the pion, a total momentum of zero, and a kinetic energy equal to that of the pion. The neutrino mass is zero, but no assumption is made with respect to parity conservation nor to the validity of the two- component neutrino theory. (J.S.R.)

• Research Organization: Academia R.P.R. Institutul de Fizica Atomica, Bucharest
• NSA Number: NSA-14-001978
• OSTI ID: 4226003
• Report Number(s): IFA/FT/32
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
ANISOTROPY
DECAY
ENERGY
FERMIONS
MASS
MOMENTUM
MUONS
NEUTRINOS
PARITY
PHYSICS
PIONS
POLARIZATION
SPIN