Properties of xi- and xi0 Hyperons
Jan, 1974
60 pages
Published in:
- Phys.Rev.D 9 (1974) 49
Report number:
- Print-74-0091 (SUNY,BINGHAMTON)
Citations per year
Abstract: (APS)
We report a measurement of the Ξ− and Ξ0 weak-decay parameters, mean lifetimes, and spins, based on 4303 Ξ− and 652 Ξ0 decays. We find for the Ξ−, α=−0.376±0.038, φ=11∘±9∘, τ=(1.63±0.03)×10−10 sec, and spin equal to ½ with higher spins excluded by more than 7 standard deviations; for the Ξ0, α=−0.54±0.10, φ=16∘±17∘, τ=(2.88−0.19+0.21)×10−10 sec, and spin equal to ½ with higher spins excluded by more than 4 standard deviations. The results are consistent with the requirements of T invariance, and they are in fair agreement with the ΔI=12 rule.References(8)
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