Bulletin of the American Physical Society
2009 APS April Meeting
Volume 54, Number 4
Saturday–Tuesday, May 2–5, 2009; Denver, Colorado
Session D3: Few Body Physics I |
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Sponsoring Units: DNP GFB Chair: A.R.P. Rau, Lousiana State University Room: Plaza E |
Saturday, May 2, 2009 3:30PM - 4:06PM |
D3.00001: Few-body aspects of dilute Fermi gases Invited Speaker: Dilute ultracold atomic Fermi gases and neutron matter are to a good approximation described by the same microscopic Hamiltonian if the s-wave scattering length is much larger than any other length scale of the system. This talk discusses solutions to the few-body Schroedinger equation for the trapped two-component Fermi gas with even and odd number of particles. Energies and structural properties will be presented as functions of the interaction strength, the number of fermions and the confining geometry. Our results shed light on the pairing physics and provide much needed benchmarks for few-body systems with short-range interactions that are important for the atomic, nuclear, and condensed matter physics communities. [Preview Abstract] |
Saturday, May 2, 2009 4:06PM - 4:42PM |
D3.00002: ABSTRACT WITHDRAWN |
Saturday, May 2, 2009 4:42PM - 5:18PM |
D3.00003: Few-body Studies at TUNL/HIGS Invited Speaker: An overview of experiments designed to understand the dynamics of few-body nuclear systems (A=2-4) at the Triangle Universities Nuclear Laboratory (TUNL) and the High Intensity $\gamma$-Ray Source (HI$\gamma$S) will be presented. A review of global experimental data and key advances in theory will be discussed. The talk will focus on the work at HI$\gamma$S on photodisintegration of the deuteron and $^3$He with polarized gamma-rays and measurements of angular distributions of cross sections and analyzing powers as well as total cross sections. Plans for measurements of cross sections of the photodisintegration of $^4$He will be presented. In addition, a brief description of few-body experiments at TUNL will be given, outlining nucleon-deuteron and nucleon-$^3$He scattering experiments. The impact of these measurements on potential-model and effective field theory calculations of 2-, 3-, and 4-body systems will be presented. [Preview Abstract] |
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