Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2008-09-12
Phys.Rev.Lett.102:200401,2009
Physics
Nuclear Physics
Nuclear Experiment
4 figures
Scientific paper
10.1103/PhysRevLett.102.200401
We report the first measurement of the low-energy neutron-$^3$He incoherent scattering length using neutron interferometry: $b_i' = (-2.512\pm 0.012{statistical}\pm0.014{systematic})$ fm. This is in good agreement with a recent calculation using the AV18+3N potential. The neutron-$^3$He scattering lengths are important for testing and developing nuclear potential models that include three nucleon forces, effective field theories for few-body nuclear systems, and neutron scattering measurements of quantum excitations in liquid helium. This work demonstrates the first use of a polarized nuclear target in a neutron interferometer.
Arif Md.
Black T. C.
Chen Wen-Chen
Gentile Thomas R.
Huber G. M.
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