Probing the short range spin dependent interactions by polarized 3He atom beams
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, Sichuan, 621900, China
2 Center for Exploration of Energy and Matter, Indiana University, Bloomington, IN, 47408, USA
* e-mail: email@example.com
Accepted: 12 September 2014
Published online: 7 October 2014
Experiments using polarized 3He atom beams to search for short range spin dependent forces are proposed. High intensity, high polarization, small beam size 3He atom beams have been successfully produced and used in surface science researches. By incorporating background reduction designs as combination shielding by µ-metal and superconductor and double beam paths, the precision of spin rotation angle per unit length could be improved by a factor of ~104. By this precision, in combination with a high density and low magnetic susceptibility sample source mass, and reversing one beam path if necessary, sensitivities on three different types of spin dependent interactions could be improved by as much as ~102 to ~108 over the current experiments at the millimeter range.
© SIF and Springer-Verlag Berlin Heidelberg, 2014