Platonic Sphalerons in the Presence of a Dilaton Field
نویسندگان
چکیده
We construct sphaleron solutions with discrete symmetries in Yang-Mills-Higgs theory coupled to a dilaton. Related to rational maps of degree N , these platonic sphalerons can be assigned a Chern-Simons number Q = N/2. We present sphaleron solutions with degree N = 1−4, possessing spherical, axial, tetrahedral and cubic symmetry. For all these sphalerons two branches of solutions exist, which bifurcate at a maximal value of the dilaton coupling constant.
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تاریخ انتشار 2004