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

Journal Article · Fri Nov 01 00:00:00 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), Vol. 44:5; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
PROTACTINIUM 229
GROUND STATES
PROTACTINIUM 231 TARGET
PROTON REACTIONS
QUASI-FREE REACTIONS
TWO-NUCLEON TRANSFER REACTIONS
THORIUM 230 TARGET
GAMMA SPECTRA
MEV RANGE 10-100
NEUTRONS
PARITY
TRITONS
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
HADRON REACTIONS
HADRONS
HEAVY NUCLEI
ISOTOPES
MEV RANGE
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
ODD-EVEN NUCLEI
PARTICLE PROPERTIES
PROTACTINIUM ISOTOPES
RADIOISOTOPES
SPECTRA
TARGETS
TRANSFER REACTIONS
652020* - Nuclear Properties & Reactions
A=220 & above
Experimental