Sphalerons and the electroweak phase transition in models with higher scalar representations

  title={Sphalerons and the electroweak phase transition in models with higher scalar representations},
  author={Amine Ahriche and Talal Ahmed Chowdhury and Salah Nasri},
  journal={Journal of High Energy Physics},
A bstractIn this work we investigate the sphaleron solution in a SU(2) × U(1)X gauge theory, which also encompasses the Standard Model, with higher scalar representation(s) (J(i), X(i)). We show that the field profiles describing the sphaleron in higher scalar multiplet, have similar trends like the doublet case with respect to the radial distance. We compute the sphaleron energy and find that it scales linearly with the vacuum expectation value of the scalar field and its slope depends on the… 

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