Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-07-30
Nucl.Phys.A796:11-40,2007
Physics
Nuclear Physics
Nuclear Theory
39 pages, 10 figures
Scientific paper
10.1016/j.nuclphysa.2007.09.003
Single and double coincidence nucleon spectra in the $\Lambda$-hypernuclei weak decay are evaluated and discussed using a microscopic formalism. Nuclear matter is employed together with the local density approximation which allows us to analyze the $^{12}_{\Lambda}C$ hypernucleus non-mesonic weak decay. Final state interactions (FSI) are included via the first order (in the nuclear residual interaction) terms to the RPA, where the strong residual interaction is modelled by a Bonn potential. At this level of approximation, these FSI are pure quantum interference terms between the primary decay $(\Lambda N \to NN)$ and $(\Lambda N \to NN \to NN)$, where the strong interaction is responsible for the last piece in the second reaction. Also the Pauli exchange contributions are explicitly evaluated. We show that the inclusion of Pauli exchange terms is important. A comparison with data is made. We conclude that the limitations in phase space in the RPA makes this approximation inadequate to reproduce the nucleon spectra. This fact, does not allow us to draw a definite conclusion about the importance of the interference terms.
No associations
LandOfFree
Quantum interference terms in nonmesonic weak decay of $Λ$-hypernuclei within a RPA formalism does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum interference terms in nonmesonic weak decay of $Λ$-hypernuclei within a RPA formalism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum interference terms in nonmesonic weak decay of $Λ$-hypernuclei within a RPA formalism will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-221802