Astrophysically Important Reaction Rates For Novae And X-ray Bursts From Proton Breakup At Intermediate Energies

Journal Article · Wed Nov 24 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3527219· OSTI ID:21506862

Banu, A; Trache, L ^[1]; Carstoiu, F; Negoita, F; Rotaru, F ^[2]; Orr, N A; Achouri, N L; Laurent, B ^[3]; Bonaccorso, A ^[4]; Catford, W N; Patterson, N; Thomas, J S ^[5]; Chartier, M; Fernandez-Dominguez, B; Paschalis, S; Pietras, B ^[6]; Freer, M ^[7]; Gaudefroy, L; Roussel-Chomaz, P ^[8]; Horoi, M ^[9]

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1. Cyclotron Institute, Texas A and M University, College Station, Texas 77843-3366 (United States)
2. National Institute of Physics and Nuclear Engineering, 'Horia Hulubei' (IFIN-HH), R-077125 Magurele-Bucharest (Romania)
3. Laboratoire de Physique Corpusculaire, IN2P3-CNRS, ISMRA et Universite, F-14050 Caen (France)
4. Instituto Nazionale di Fisica Nucleare, Sez. Di Pisa, I-56127 Pisa (Italy)
5. Department of Physics, University of Surrey, Guildford GU2 5XH (United Kingdom)
6. Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE (United Kingdom)
7. School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT (United Kingdom)
8. Grand Accelerateur d'Ions Lourds, BP 55027, 14076 Caen Cedex 5 (France)
9. Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859 (United States)

We discuss the use of one-nucleon removal reactions of loosely bound nuclei at intermediate energies as an indirect method in nuclear astrophysics. The breakup reactions are proved to be good spectroscopic tools and can be used to study a large number of loosely bound proton- or neutron-rich nuclei over a wide range of beam energies. As peripheral processes, they can be used to extract asymptotic normalization coefficients (ANCs) from which non-resonant capture reaction rates of astrophysical interest can be calculated parameter free. In this talk, we present results of a proton-breakup experiment carried out at GANIL (France) with a cocktail beam centered around {sup 23}Al at 50 MeV/nucleon. Momentum distributions of the breakup fragments, inclusive and in coincidence with gamma rays detected by EXOGAM Germanium clover array, were measured in the focal plan of SPEG energy-loss spectrometer. We present in particular the investigations of reaction rates for {sup 22}Mg(p,{gamma}){sup 23}Al and {sup 23}Al(p,{gamma}){sup 24}Si important for novae and X-ray bursts, respectively.

• OSTI ID: 21506862
• Journal Information: AIP Conference Proceedings, Vol. 1304, Issue 1; Conference: Carpathian summer school of physics - Exotic nuclei and nuclear/particle astrophysics (III): From nuclei to stars, Sinaia (Romania), 20 Jun - 3 Jul 2010; Other Information: DOI: 10.1063/1.3527219; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 23
BEAMS
BREAKUP REACTIONS
CAPTURE
COSMIC X-RAY BURSTS
ENERGY LOSSES
EXCITED STATES
GAMMA DECAY
GAMMA RADIATION
GANIL CYCLOTRON
MAGNESIUM 22
MEV RANGE 10-100
NEUTRON-RICH ISOTOPES
NOVAE
PROTON REACTIONS
PROTONS
REACTION KINETICS
SILICON 24
SPECTROMETERS
X RADIATION
ACCELERATORS
ALKALINE EARTH ISOTOPES
ALUMINIUM ISOTOPES
BARYON REACTIONS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
BINARY STARS
CHARGED-PARTICLE REACTIONS
COSMIC RADIATION
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
CYCLIC ACCELERATORS
CYCLOTRONS
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
ERUPTIVE VARIABLE STARS
EVEN-EVEN NUCLEI
FERMIONS
HADRON REACTIONS
HADRONS
HEAVY ION ACCELERATORS
IONIZING RADIATIONS
ISOCHRONOUS CYCLOTRONS
ISOTOPES
KINETICS
LIGHT NUCLEI
LOSSES
MAGNESIUM ISOTOPES
MEASURING INSTRUMENTS
MEV RANGE
MILLISECONDS LIVING RADIOISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
ODD-EVEN NUCLEI
PRIMARY COSMIC RADIATION
RADIATIONS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICON ISOTOPES
STARS
VARIABLE STARS