Reaction Studies and Astrophysics with In-flight Beams

Details Reaction Studies and Astrophysics with In-flight Beams Reaction Studies and Astrophysics with In-flight Beams

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..dnp6wa004z&link_type=abstract

American Physical Society, Division of Nuclear Physics Meeting, 27-30 October, 2004, Chicago, IL. MEETING ID: DNP04., abstract #

Physics

Nuclear Physics

Scientific paper

The availability of rare isotope beams of significant intensities provides many exciting possibilities to study nuclear reactions and their applications towards astrophysics. A good example is charge-exchange reactions, which provide, amongst others, ways to measure weak interaction rates important for stellar evolution studies, neutron-skin thicknesses and the neutrino process. Whereas with stable beams, such studies are relatively straightforward, working with radioactive beams in inverse kinematics provides many experimental challenges. For example, simply measuring the heavy ejectile after a reaction will generally speaking not suffice to obtain sufficiently high resolutions and to separate various channels that lead to the same product. Therefore, alternative techniques have to be developed and tested. Using the (p,n) (for the Δ T_z=-1 direction ) and (d,^2He) (for the Δ Tz = +1 direction) reactions in inverse kinematics, where the reactions are tagged by the light recoil, are interesting options. At present, these and other possibilities (like heavy-ion charge exchange) are being investigated at the NSCL by means of Monte Carlo simulations and, in the future, in real experiments. The presentation will focus on the experimental methods and challenges and the physics opportunities.

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