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Nuclear Astrophysics Working Group Discussion. Schedule. 6:00 – 6:15 Philippe Collon ( p -process: AMS) 6:15 – 6:30 Alan Chen (Classical novae/X-ray bursts) 6:30 – 6:45 Sergio Almaraz -Calderon (fusion: MUSIC detector)
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Schedule 6:00 – 6:15 Philippe Collon (p-process: AMS) 6:15 – 6:30 Alan Chen (Classical novae/X-ray bursts) 6:30 – 6:45 Sergio Almaraz-Calderon (fusion: MUSIC detector) 6:45 – 7:00 Nick Scielzo (r-process: b-delayed neutron emission) 7:00 – 7:15 Matt Mumpower (r-process: mass sensitivity studies) 7:15 – 7:30 HyeYoung Lee (r-process: APOLLO at HELIOS) 7:30 – 7:40 Guy Savard (r-process: N = 126 factory, masses) 7:40 – 8:00 Discussion
ATLAS Questionnaire • What are the most important physics questions you plan to study at ATLAS over the next 5 – 10 years? • reduce reaction rate uncertainties for those reactions important in explosive nucleosynthesis (e.g. classical novae, type I XRBs) • understanding the r-process: • “surrogate” reactions • masses • beta-delayed neutron emission • p process nuclei • Fusion with nuclei far from stability • Other processes/site: e.g. early stars, s-process, etc.
How do these questions relate to the present priorities of the field? • They relate well, addressing multiple questions put forth in The Frontiers of Nuclear Science: A long range plan (2007): • What is the nature of neutron stars and dense nuclear matter? • What is the origin of the elements in the cosmos? • What are the nuclear reactions that drive stars and stellar explosions? • Fit in nicely with planned nuclear astrophysics research at ReA3 and FRIB • Complimentary to research priorities of JINA
What developments in accelerator capabilities and instrumentation do you envision as being needed to optimize the Nuclear Astrophysics research program at the facility? • Current developments: • gas target, ionization chamber, APOLLO for HELIOS • new BPT trap for beta-delayed neutron studies • N = 126 factory at CARIBU • Planned developments: • increased radioactive ion beam intensities and purities • target development to take advantage of high intensities • Future developments? • multi-user capabilities • neutron detection capabilities?
Are you interested in actively participating in the development of new instrumentation and capabilities for ATLAS? • yes: several of the users in the session are actively involved in commissioning of new equipment and are interested in future projects • e.g. APOLLO (LANL), HELIOS ionization chamber (LSU) • Interest in future planned projects (e.g. AIRIS, AGFA)??
Did you identify other important issues that the Executive Committee of the ATLAS User Group and the ATLAS management should make a priority for the facility?