Khuri, N. N.Martin, AndréSabatier, Pierre C.Wu, Tai Tsun2019-10-172005Khuri, N. N., André Martin, Pierre C. Sabatier, and Tai Tsun Wu. 2005. “Universality of Low-Energy Scattering in 2+1 Dimensions: The Nonsymmetric Case.” Journal of Mathematical Physics 46 (3): 32103. https://doi.org/10.1063/1.1843274.0022-24881089-7658http://nrs.harvard.edu/urn-3:HUL.InstRepos:41555802For a very large class of potentials, V((x) over right arrow),(x) over right arrow is an element of R-2, we prove the universality of the low-energy scattering amplitude, f((k) over right arrow,(k) over right arrow). The result is f=root pi/2(1/log k) +o(1)/[log(1/k)]. The only exceptions occur if V happens to have a zero-energy bound state. Our new result includes as a special subclass the case of rotationally symmetric potentials, V(vertical bar(x) over right arrow vertical bar).en-USJournal Article2019-10-1710.1063/1.1843274