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

• Main Authors: Banu, A., Trache, L., National Institute of Physics and Nuclear Engineering, 'Horia Hulubei', Carstoiu, F., Negoita, F., Rotaru, F., Orr, N. A., Achouri, N. L., Laurent, B., Bonaccorso, A., Catford, W. N., Patterson, N., Thomas, J. S., Chartier, M., Fernandez-Dominguez, B., Paschalis, S., Pietras, B., Freer, M., Gaudefroy, L., Roussel-Chomaz, P., Horoi, M.
• Format: Conference Proceeding
• Language: English
• Subjects: ACCELERATORS; ALKALINE EARTH ISOTOPES; ALUMINIUM 23; ALUMINIUM ISOTOPES; BARYON REACTIONS; BARYONS; BEAMS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BETA-PLUS DECAY RADIOISOTOPES; BINARY STARS; BREAKUP REACTIONS; CAPTURE; CHARGED-PARTICLE REACTIONS; COSMIC RADIATION; COSMIC RAY SOURCES; COSMIC X-RAY BURSTS; COSMIC X-RAY SOURCES; CYCLIC ACCELERATORS; CYCLOTRONS; DECAY; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY LEVELS; ENERGY LOSSES; ENERGY RANGE; ERUPTIVE VARIABLE STARS; EVEN-EVEN NUCLEI; EXCITED STATES; FERMIONS; GAMMA DECAY; GAMMA RADIATION; GANIL CYCLOTRON; HADRON REACTIONS; HADRONS; HEAVY ION ACCELERATORS; IONIZING RADIATIONS; ISOCHRONOUS CYCLOTRONS; ISOTOPES; KINETICS; LIGHT NUCLEI; LOSSES; MAGNESIUM 22; MAGNESIUM ISOTOPES; MEASURING INSTRUMENTS; MEV RANGE; MEV RANGE 10-100; MILLISECONDS LIVING RADIOISOTOPES; NEUTRON-RICH ISOTOPES; NOVAE; NUCLEAR DECAY; NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEAR REACTIONS; NUCLEI; NUCLEON REACTIONS; NUCLEONS; ODD-EVEN NUCLEI; PRIMARY COSMIC RADIATION; PROTON REACTIONS; PROTONS; RADIATIONS; RADIOISOTOPES; REACTION KINETICS; SECONDS LIVING RADIOISOTOPES; SILICON 24; SILICON ISOTOPES; SPECTROMETERS; STARS; VARIABLE STARS; X RADIATION
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.3527219

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.