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Full-Text Articles in Physics
Comment On Particle Mixing And Delta-I= 3/2 Terms In Non-Leptonic Weak Decays, Br Holstein
Comment On Particle Mixing And Delta-I= 3/2 Terms In Non-Leptonic Weak Decays, Br Holstein
Barry R Holstein
A recent paper by Gusbin concludes that ΔI=3/2 terms in K→πη can substantially modify particle-mixing contributions to K+→π+π0. Using techniques which can successfully reproduce the experimental features of the K→ππ decays, we argue that this seems unlikely.
Implications Of Nuclear Parity Non-Conservation, Jf Donoghue, Br Holstein
Implications Of Nuclear Parity Non-Conservation, Jf Donoghue, Br Holstein
Barry R Holstein
From recent developments in the area of nuclear parity nonconservation we extract evidence for (1) SU(3) /soft-pion breaking in weak pionic vertices, and (2) larger values of quark masses than have been used in previous evaluations of "penguin" matrix elements.
Induced Tensor And Ft Asymmetries, Br Holstein
Induced Tensor And Ft Asymmetries, Br Holstein
Barry R Holstein
Looked at from a model-independent point of view, the existence of a non-zero first class induced tensor form factor appears to provide a substantial contribution to the observed ft asymmetry in mirror Gamow-Teller beta decays. However, we demonstrate that, when analyzed in terms of the impulse approximation, this is only a negligibly small effect. RADIOACTIVITY Calculated contribution to ft asymmetry from first class induced tensor.
Compendium Of Bag-Model Matrix-Elements Of The Weak Non-Leptonic Hamiltonian, Jf Donoghue, E Golowich, Br Holstein, Wa Ponce
Compendium Of Bag-Model Matrix-Elements Of The Weak Non-Leptonic Hamiltonian, Jf Donoghue, E Golowich, Br Holstein, Wa Ponce
Barry R Holstein
A comprehensive list of baryon and meson single-particle matrix elements of the nonleptonic weak Hamiltonian is presented.
Triple Gamma Directional Correlations In The Decay Of Europium-154, Gary Lewis
Triple Gamma Directional Correlations In The Decay Of Europium-154, Gary Lewis
Gary C. Lewis
The ('154)Eu nucleus decays by beta emission to an excited state of the ('154)Gd nucleus. The resulting ('154)Gd nucleus decays to its ground state by emission of gamma rays. One series of gamma rays emitted in this process is a cascade of energies 723 keV, 873 keV, and 123 keV. The 873 keV gamma ray is a mixture of E2 and M1 radiation. The mixing ratio of this transition has been measured using the triple gamma directional correlation technique. The experiments used a planar geometry with one angle fixed at 90 degrees. Two Ge(Li) detectors and one NaI(T1) detector were …