First observation of high-spin states in {sup 214}Po: Probing the valence space beyond {sup 208}Pb

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.83.014311· OSTI ID:21499333

Astier, Alain; Porquet, Marie-Genevieve ^[1]

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1. CSNSM, IN2P3-CNRS and Universite Paris-Sud, F-91405 Orsay (France)

Excited states in {sup 214}Po have been populated using the {sup 18}O + {sup 208}Pb reaction at 85-MeV beam energy and studied with the Euroball IV {gamma}-multidetector array. The level scheme has been built up to {approx}2.7-MeV excitation energy and spin I=12({h_bar}/2{pi}) from the triple-{gamma} coincidence data. Spin and parity values of most of the observed states have been assigned from the {gamma}-angular properties. The configurations of the yrast states are discussed using results of empirical shell-model calculations and by analogy with the neighboring nuclei. The {sup 214}Po level scheme established in this work constitutes an important step for the determination of the effective nucleon-nucleon interactions beyond N=126.

• OSTI ID: 21499333
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevC.83.014311; (c) 2011 American Institute of Physics; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BEAMS
CONFIGURATION
EXCITATION
EXCITED STATES
HIGH SPIN STATES
LEAD 208 TARGET
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEON-NUCLEON INTERACTIONS
OXYGEN 18 REACTIONS
PARITY
POLONIUM 214
SHELL MODELS
SPIN
YRAST STATES
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HADRON-HADRON INTERACTIONS
HEAVY ION REACTIONS
HEAVY NUCLEI
INTERACTIONS
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MICROSECONDS LIVING RADIOISOTOPES
NUCLEAR MODELS
NUCLEI
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
POLONIUM ISOTOPES
RADIOISOTOPES
TARGETS