NUCLEAR HOLE STATES AS A PROBE OF THE NUCLEAR MANY BODY SYSTEM

Technical Report · Tue Aug 01 04:00:00 EDT 1978

DOI:https://doi.org/10.2172/1009809· OSTI ID:1009809

Doll, P

Nuclear hole states studied in proton and neutron pick-up reactions on light and heavy target nuclei exhibit -- for deeply-bound shell model orbits -- properties, which are strongly affected by target nucleus collectivities. Quasiparticle-like holes in nuclei are formed showing features very similar to those of other highly excited modes e.g. giant quadrupole resonances. The similarity between these two complicated modes of excitation in light and heavy nuclei asks for a detailed theoretical interpretation. Both modes are built up by a bulk of levels with fixed spin and parity in the continuum region of nuclei. Deeply bound hole states may, like giant multipole resonances, be interpreted as collective phenomena and, therefore, can represent a new tool for investigating the nuclear many body system. {gamma}-decay measurements of these complicated modes, or nuclear photoeffect measurements of quasiholes, would provide the most direct access to their collective structure. However, such experiments are difficult to perform. On the other hand, light Particle decay studies for the systems discussed here, will surely help to clarify their common microscopic features.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Physics Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 1009809
• Report Number(s): LBL-7790
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS
EXCITATION
HEAVY NUCLEI
MULTIPOLES
NEUTRONS
NUCLEI
PARITY
PARTICLE DECAY
PROBES
PROTONS
QUADRUPOLES
SHELL MODELS
SPIN
TARGETS