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Author Parreno, A. ♦ Ramos, A. ♦ Oset, E.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ LAMBDA BARYONS ♦ NUCLEAR DECAY ♦ CORRELATIONS ♦ HYPERNUCLEI ♦ HELIUM 5 ♦ CARBON 12 ♦ PSEUDOSCALARS ♦ PIONS ♦ NUCLEONS ♦ COUPLINGS
Abstract The differences found in the relativistic and nonrelativistic methods used in the literature to account for short range nuclear correlations in the decay of {Lambda} hypernuclei are analyzed. By means of a schematic microscopic model for the origin of correlations, the appropriate method to include them in nuclear processes is derived and is found to be the same one used in the nonrelativistic approach. The differences do not stem from relativistic effects but from the improper implementation of the correlations in the relativistic approach, which leads to several pathologies as shown in the paper. General formulas are given to evaluate the nonmesonic decay width of finite hypernuclei and results are obtained for {sub {Lambda}}{sup 5}He and {sub {Lambda}}{sup 12}C.
ISSN 05562813
Educational Use Research
Learning Resource Type Article
Publisher Date 1995-05-01
Publisher Place United States
Journal Physical Review, C
Volume Number 51
Issue Number 5


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