Where the electroweak phase transition ends

We give a more precise characterisation of the end of the electroweak phase transition in the framework of the effective 3d SU(2)-Higgs lattice model than has been given before. The model has now been simulated at βG = 12 and 16 for M ∗ H = 70 GeV and Higgs masses above the critical mass up to lattices 80 and the data have been used for reweighting. The breakdown of finite volume scaling of the Lee–Yang zeroes indicates the immediate change from a first order transition to a crossover at λ3/g 2 3 = 0.105(1) in rough agreement with results of Ref. [1] at βG = 9 and smaller lattices. The infinite volume extrapolation of the discontinuity ∆〈φφ〉/g 3 turns to zero at λ3/g 2 3 = 0.113(2). We comment on the limitations of the second method.