Nucleon-nucleon coincidence spectra in the nonmesonic weak decay of lambda hypernuclei and the gamma(n)/gamma(p) puzzle.

@article{Garbarino2003NucleonnucleonCS,
  title={Nucleon-nucleon coincidence spectra in the nonmesonic weak decay of lambda hypernuclei and the gamma(n)/gamma(p) puzzle.},
  author={Gianni Garbarino and Assumpta Parre{\~n}o and A. Orfila Ramos},
  journal={Physical review letters},
  year={2003},
  volume={91 11},
  pages={112501}
}
By combining a one-meson-exchange model for the LambdaN-->nN transition in finite nuclei with an intranuclear cascade code, we have obtained nucleon-nucleon (angular and energy) coincidence distributions from the nonmesonic weak decay of (5)(Lambda)He and (12)(Lambda)C hypernuclei. Although, due to the elimination of interferences, two-nucleon coincidences are expected to give a cleaner extraction (with respect to single nucleon observables) of the ratio Gamma(n)/Gamma(p) identical with Gamma… CONTINUE READING