Ridout, David2015-12-100550-3213http://hdl.handle.net/1885/67402The fusion rules of conformal field theories admitting an sl̂(2)-symmetry at level k=-1/2 are studied. It is shown that the fusion closes on the set of irreducible highest weight modules and their images under spectral flow, but not when "highest weight"Keywords: Fractional level WZW model; Fusion; Logarithmic conformal field theory201110.1016/j.nuclphysb.2011.02.0152016-02-24