Does a 5/2 sup + -5/2 sup minus ground-state parity doublet exist in sup 229 Pa

Journal Article · Fri Nov 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.R1728· OSTI ID:5022608

Grafen, V; Ackermann, B; Baltzer, H; Bihn, T; Guenther, C ^[1]; deBoer, J; Gollwitzer, N; Graw, G; Hertenberger, R; Kader, H; Levon, A; Loesch, A ^[2]

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1. Institut fuer Strahlen-und Kernphysik, Universitaet Bonn, Bonn (Germany)
2. Sektion Physik, Universitaet Muenchen, Muenchen (Germany)

The 1/2(530) decoupled band in {sup 229}Pa has been identified up to the 19/2{sup {minus}} level in ({ital p},{ital t}) and ({ital p},2{ital n}{gamma}) experiments. It is found that the 3/2{sup {minus}} band head has an excitation energy of 19(10) keV, and can thus not be identified with a 123 keV level observed in the {sup 229}U electron capture decay. This removes the evidence presented earlier for a spin-parity assignment of 5/2{sup +-}5/2{sup {minus}} to a proposed nearly degenerate ground-state doublet in {sup 229}Pa.

• OSTI ID: 5022608
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 44:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

652020* -- Nuclear Properties & Reactions
A=220 & above
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
DAYS LIVING RADIOISOTOPES
DIRECT REACTIONS
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
FERMIONS
GAMMA SPECTRA
GROUND STATES
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
ISOTOPES
MEV RANGE
MEV RANGE 10-100
MULTI-NUCLEON TRANSFER REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
ODD-EVEN NUCLEI
PARITY
PARTICLE PROPERTIES
PROTACTINIUM 229
PROTACTINIUM 231 TARGET
PROTACTINIUM ISOTOPES
PROTON REACTIONS
QUASI-FREE REACTIONS
RADIOISOTOPES
SPECTRA
TARGETS
THORIUM 230 TARGET
TRANSFER REACTIONS
TRITONS
TWO-NUCLEON TRANSFER REACTIONS