sup 22 Ne( d , p ) sup 23 Ne reaction and neutron balance in the s process

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.2730· OSTI ID:6150524

Champagne, A E ^[1]; Howard, A J ^[2]; Mao, Z Q ^[3]

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1. Department of Physics, Princeton University, Princeton, NJ (USA)
2. Department of Physics, Trinity College, Hartford, CT (USA)
3. Department of Physics and Atmospheric Science, Drexel University, Philadelphia, PA (USA)

One possible source of neutrons for the astrophysical {ital s} process is the {sup 22}Ne({alpha},{ital n}){sup 25}Mg reaction. However, the number of neutrons available to synthesize heavy elements may be limited by the rate of the {sup 22}Ne({ital n},{gamma}){sup 23}Ne reaction. To aid in the interpretation of recent ({ital n},{gamma}) measurements, we have used the {sup 22}Ne({ital d},{ital p}){sup 23}Ne reaction to investigate the single-particle structure of states located near the {sup 22}Ne+{ital n} threshold. No states that correspond to astrophysically significant resonances were found, and so the ({ital n},{gamma}) rate is effectively determined by direct capture.

• OSTI ID: 6150524
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ASTROPHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CAPTURE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERON REACTIONS
DIRECT REACTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
HADRONS
ISOTOPES
LIGHT NUCLEI
NEON 22 TARGET
NEON 23
NEON ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PROTONS
RADIOISOTOPES
S PROCESS
SECONDS LIVING RADIOISOTOPES
SPECTROSCOPIC FACTORS
STAR EVOLUTION
STRIPPING
TARGETS
TRANSFER REACTIONS