R.H. Milburn

Bio: R.H. Milburn is an academic researcher from Harvard University. The author has contributed to research in topics: Neutrino & Muon. The author has an hindex of 2, co-authored 2 publications receiving 18 citations.

Improved Determination of the Neutral Decay Branching Ratios of the K 1 0 Meson and the Λ 0 Hyperon

Abstract: Using a 15-in. bubble chamber filled with methyl iodide, propane, and ethane, we have measured the neutral branching ratios of the ${{K}_{1}}^{0}$ meson and the ${\ensuremath{\Lambda}}^{0}$ hyperon. The neutral modes of the decays were observed directly from the materialized $\ensuremath{\gamma}$ rays. The results are ${B}_{K}\ensuremath{\equiv}\frac{({{K}_{1}}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}+{\ensuremath{\pi}}^{0})}{({{K}_{1}}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}+{\ensuremath{\pi}}^{\ensuremath{-}})+({{K}_{1}}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}+{\ensuremath{\pi}}^{0})}=0.288\ifmmode\pm\else\textpm\fi{}0.021$ and ${B}_{\ensuremath{\Lambda}}\ensuremath{\equiv}\frac{({\ensuremath{\Lambda}}^{0}\ensuremath{\rightarrow}n+{\ensuremath{\pi}}^{0})}{({\ensuremath{\Lambda}}^{0}\ensuremath{\rightarrow}p+{\ensuremath{\pi}}^{\ensuremath{-}})+({\ensuremath{\Lambda}}^{0}\ensuremath{\rightarrow}n+{\ensuremath{\pi}}^{0})}=0.291\ifmmode\pm\else\textpm\fi{}0.034.$The ${B}_{K}$ ratio suggests an admixture of $|\ensuremath{\Delta}I|=\frac{3}{2}$ in the ${{K}_{1}}^{0}$ decay consistent with that implied by the decay ${K}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}+{\ensuremath{\pi}}^{0}$. The relative phase $\ensuremath{\phi}$ between the $|\ensuremath{\Delta}I|=\frac{1}{2} \mathrm{and} \frac{3}{2}$ amplitudes is determined to be $\ensuremath{\phi}={{0}_{\ensuremath{-}0}}^{+54}$ deg.

Asymmetry of Low-Energy Positrons from Muon Decay

Abstract: An investigation of the angular asymmetry of lowenergy positrons from the decay of polarized muons coming to rest in a propane bubble chamber is reported. The energy dependence of the asymmetry parimeter alpha is predicted by the two-component theory of the neutrino, while according to the four- component theory, with arbitrary parity-nonconserving interactions, this parameter can have a wide range of energy variations depending on the values of the interaction constants. Berley et al., have recently investigated the energy dependence of the asymmetry parameter for the upper half of the energy spectrum by an absorption technique and found approximate agreement with the prediction of the two-component theory. The results of the present work support this view. (A.C.)

A theory of weak interactions

Abstract: In this paper we investigate the possibility of the existence of anSU3-symmetric structure of weak interactions. For this purpose we view all weak interactions as taking place in a «weak»SU3-space which has «weak» isotropic spinI′ and «weak» hyperchargeY′ as its conserved quantities. The eigenstates ofI′ andY′ are formed out of mixing the physical particle states which are the octets of hadrons and the (postulated) triplets of leptons. All weak interactions now consist of a weakSU3-symmetric part and a part which is asymmetric along the weak hypercharge axis. All the well-known results of the weak decays are derived and the suppression of |ΔS|=1 and ΔI=3/2 and |ΔS|=2 decays is naturally explained. We do not make use of the hypothesis of current-current interaction and octet dominance.