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.
Comment on "A proposed method for measuring the electric dipole moment of the neutron using acceleration in an electric field gradient and ultracold neutron interferometry"
Environmental Stabilization of Perfect-Crystal Neutron Interferometry Using a Large Vacuum Chamber with Cryogenic Sample Access
North Carolina State University(北卡罗来纳州立大学);University of Waterloo(滑铁卢大学);Tulane University(杜兰大学);National Institute of Standards and Technology(美国国家标准与技术研究院);University at Buffalo(布法罗大学)
Measurement of the neutron incoherent scattering length of ${}^{199}$Hg using stored ultracold neutrons
University of Sussex(萨塞克斯大学);Jagiellonian University(雅盖隆大学);University of Bern(伯尔尼大学);ETH Zürich(苏黎世联邦理工学院);University of Kentucky(肯塔基大学);Johannes Gutenberg University Mainz(美因茨约翰内斯·古腾堡大学);Université de Caen Normandie(诺曼底卡昂大学);University of Leuven(鲁汶大学);Université Grenoble Alpes(格勒诺布尔阿尔卑斯大学)
A Proposed Method for Measuring the Electric Dipole Moment of the Neutron Using Acceleration in an Electric-Field Gradient and Ultracold Neutron Interferometry
Internal Consistency of Neutron Coherent Scattering Length Measurements from Neutron Interferometry and from Neutron Gravity Reflectometry for Exotic Yukawa Analyses
Probing the neutron-skin thickness through $J/ψ$ photoproduction in ultra-peripheral collisions
Shanghai Institute of Applied Physics, Chinese Academy of Sciences(中国科学院上海应用物理研究所);University of Chinese Academy of Sciences(中国科学院大学);Fudan University(复旦大学);East China Normal University(华东师范大学)