This is the accepted manuscript made available via CHORUS. The article has been published as: ^{149}Sm(n,α)^{146}Nd Cross Sections in the MeV Region Guohui Zhang, Yu. M. Gledenov, G. Khuukhenkhuu, M. V. Sedysheva, P. J. Szalanski, P. E. Koehler, Yu. N. Voronov, Jiaming Liu, Xiang Liu, Jinhua Han, and Jinxiang Chen Phys. Rev. Lett. 107, 252502 — Published 14 December 2011 DOI: 10.1103/PhysRevLett.107.252502