Hamburg 2016 – scientific programme

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T: Fachverband Teilchenphysik

T 13: Quantenfeldtheorie und Gittereichtheorie (Theorie)

T 13.3: Talk

Monday, February 29, 2016, 11:30–11:45, VMP8 SR 106

A new sphaleron in SU(3) Yang-Mills-Higgs theory — •Pascal Nagel and Frans Klinkhamer — Karlsruher Institut für Technologie (KIT), Karlsruhe, Deutschland

The sphaleron solution S is known to contribute to baryon-number violation within the electroweak Standard Model. To gain further insight into the nonperturbative dynamics of QCD (and GUTs), we study a new sphaleron solution of SU(3) Yang-Mills-Higgs theory, the solution S. Two independent numerical approaches yield solutions of the reduced field equations and a surprising structure of the energy barrier in configuration space.