Electroweak phase transition in the early universe?
Existence and properties of the electroweak phase transition in the early universe depend strongly on the mass of the Higgs scalar MH. There is presumably no true symmetry restoration at high temperature. Nevertheless, a first order phase transition occurs in the standard model for MH ≲ GeV. For a r...
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| Main Authors: | , |
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| Format: | Chapter/Article Conference Paper |
| Language: | English |
| Published: |
1998
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| In: |
Current topics in astrofundamental physics
Year: 1998, Pages: 211-240 |
| DOI: | 10.1007/978-94-011-5046-0_6 |
| Subjects: | |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1007/978-94-011-5046-0_6 Verlag, Volltext: https://link.springer.com/chapter/10.1007/978-94-011-5046-0_6 
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| Author Notes: | Bastian Bergerhoff and Christof Wetterich |
| Summary: | Existence and properties of the electroweak phase transition in the early universe depend strongly on the mass of the Higgs scalar MH. There is presumably no true symmetry restoration at high temperature. Nevertheless, a first order phase transition occurs in the standard model for MH ≲ GeV. For a realistic scalar mass M≳ GeV the transition to the high temperature regime is described by a crossover, due to the strong electroweak gauge interactions for temperatures near and above the critical temperature. Electroweak baryogenesis during this transition seems not possible within the standard model. The observed baryon asymmetry in the universe therefore implies the necessity of an extension of the standard model. |
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| Item Description: | Gesehen am 26.09.2017 |
| Physical Description: | Online Resource |
| ISBN: | 9789401150460 |
| DOI: | 10.1007/978-94-011-5046-0_6 |