Analyzing power of the n-3He elastic scattering from 3.7 to 22.0 MeV

Abstract Measurements of the analyzing power A y of elastic n- 3 He scattering in the energy range from 3.7 to 22 MeV are reported. These data improve considerably the precision of the data around 3 MeV. Recent results in the range 8 to 17 MeV are supplemented. The data at 22 MeV are not in agreement with a previous experiment which caused problems in phase-shift analyses. A comparison of the new data with n- 3 H, p- 3 H and p- 3 He analyzing powers shows only small Coulomb effects but strong dependence on the isospin structure of the intermediate A = 4 system.