Sphalerons in the NMSSM

Koichi Funakubo, Akira Kakuto, Shuichiro Tao, Fumihiko Toyoda

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


We study sphaleron solutions in the next-to-minimal supersymmetric standard model. We find that the boundary condition on the singlet field at the origin of the radial coordinate is of Neumann type, while the other boundary conditions are of Dirichlet type. The sphaleron energy takes almost the same value as in the MSSM for a wide range of parameter values, in spite of the negative contribution from the cubic term in the Higgs potential.

Original languageEnglish
Pages (from-to)1069-1082
Number of pages14
JournalProgress of Theoretical Physics
Issue number5
Publication statusPublished - Nov 2005
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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