Two-neutron transfer reaction is known to be a sensitive probe to the pairing correlation in nuclei. In open shell nuclei, such as stable Sn isotopes, the pair correlated ground state is regarded as a superfluid state with the pairing gap in an analogy to the BCS theory of the superconductors. One of the characteristic features of the neutral superfluid is the presence of pairing collective...
The radiative neutron capture is one of the elementary processes which play key roles in the r-process nucleosynthesis. The nuclei on the r-process path have a small neutron separation energy of typically ~2 MeV, and hence the statistical neutron-capture model often adopted to describe the s-process may not be appropriate. In the present work, we formulate a novel theory [1,2] which describes...
A Theory of General Particle Transfer Potential from Atom-Molecule to Quark-Gluon Systems
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Shinsho Oryu\
Department of Physics, Faculty of Science and Technology, Tokyo University of Science,
Noda, Chiba 278-8510, Japan.
e-mail:oryu@rs.noda.tus.ac.jp\\
A structure of a general particle transfer (GPT) potential based on the quasi two-body equation in the three-body system is...
Alpha knock-out reaction is a useful tool to investigate properties of the alpha particle formation in the nuclear surface region. In order to give a qualitative measure for the alpha particle formation probability as a function of the location inside the nucleus, we define the local alpha strength function S(r,E). When an alpha particle is removed from the position r inside the nucleus,...
We have performed in-beam muon activation measurements to deduce the
production branching ratio of the isotopes produced by the muon
capture reaction of Pd isotopes.
The muon capture reaction is a capture of a negative muon into the
proton via the weak interaction. While muon capture is analogous to
electron capture, the excitation energy populated by the muon capture
is much higher at...
Projectile fragmentation is one of the most effective methods of producing unstable nuclei. Calculations of the reaction cross-section are based on the abrasion-ablation model, which consists of a two-step reaction via an excited pre-fragment state.
While the total cross-section is calculated using the abrasion-ablation model, the momentum distribution is often described by the Goldhaber...
