EFFECT OF WEAK MAGNETISM IN SEMILEPTONIC DECAY OF HYPERONS

For the baryon semileptonic decay B→B′+e+ν̄, the correlation function among the spin of the final baryon and the momenta of the leptons is computed, assuming only first-class hadronic weak currents. The weak-magnetism term is found to enter the correlation function in the first order in (mB-mB′)mB via interference with the vector and the axial-vector terms. The expression may be useful in the future experimental determination of the magnetic form factor for various hadronic weak currents. © 1969 The American Physical Society.