TESTS FOR THE SPIN IN THE DECAY OF PARTICLES OF ARBITRARY SPIN

Journal Article · Wed Oct 01 04:00:00 EDT 1958 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.112.273· OSTI ID:4294426

Durand, L III; Landovitz, L F; Leitner, J

The polarization andangular distribution of a spin-1/2 particle produced in the decy of a fermion of arbitary spin into two particles of spins 0 and 1/2, and in the decay of a boson of arbitary spin into two different spin-1/2 particles, one of which is a two-component neutrino, are calculated in terms of the general decay amplitudes. The results are applied to the discussion of tests for the spin of the decaying particle. Restrictions on the possible spins are found in terms of inequalities limiting the values of certain test functions applied to the experimental angular distributions and polarizations. The results for the boson decay are used in a discussion of the spin of the K/sub mu 2/ of the possibility of lepton conservation in the K/sub mu 2/ and pi - mu decays. A limit of 10% nonconservation of leptons is found if the K spin is 0. Application of the spin tests to the decay of the LAMBDA /sup o/ hyperon provides substantial evidence that the LAMBDA /sup O/ spin is 1/2. (auth)

• Research Organization: Inst. for Advanced Study, Princeton, N.J.; Duke Univ., Durham, N.C.
• NSA Number: NSA-13-002395
• OSTI ID: 4294426
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 112; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ANGULAR DISTRIBUTION
BOSONS
DECAY
ELEMENTARY PARTICLES
FERMIONS
KAONS
LAMBDA PARTICLES
LEPTONS
MUONS
NEUTRINOS
PHYSICS AND MATHEMATICS
PIONS
POLARIZATION
SPIN
TESTING