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Type: Journal article
Title: Factorization contributions and the breaking of the ΔI=1/2 rule in weak ΛNρ and ΣNρ couplings
Other Titles: Factorization contributions and the breaking of the DeltaI=1/2 rule in weak LambdaNrho and SigmaNrho couplings
Author: Maltman, Kim
Shmatikov, Mikhail
Citation: Physical Review C, 1995; 51(3):1576-1579
Publisher: American Physical Society
Issue Date: 1995
ISSN: 0556-2813
School/Discipline: School of Chemistry and Physics : Physics and Mathematical Physics
Statement of
Kim Maltman, Mikhail Shmatikov
Abstract: We compute the modified factorization contributions to the Λ→Nρ and Σ→Nρ couplings and demonstrate that these contributions naturally include ΔI=3/2 terms which are comparable (≃0.4 to -0.8 times) in magnitude to the corresponding ΔI=1/2 terms. As a consequence, we conclude models which treat vector meson exchange contributions to the weak conversion process ΛN→NN assuming such weak couplings to satisfy the ΔI=1/2 rule are unlikely to be reliable.
Rights: ©1995 American Physical Society
DOI: 10.1103/PhysRevC.51.1576
Appears in Collections:Physics publications

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