Sphalerogenesis
Fuente:
arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866910188898877440 |
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| author | Tanaka, Masanori |
| author_facet | Tanaka, Masanori |
| contents | We propose a mechanism called sphalerogenesis to explain the baryon asymmetry of the universe (BAU). The BAU is explained by a CP-violating decay of the electroweak sphaleron. We introduce a dimension-six operator constructed from weak gauge fields: $Q_{\widetilde{W}} \sim Λ^{-2} ε_{ijk} \widetilde{W}_{μν}^{i} W^{j νρ} W_ρ^{kμ}$. We find that the BAU can be explained if $Λ\simeq 38\,{\rm TeV}$. This scenario can be tested by electron electric dipole moment measurements in the near future. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_09984 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Sphalerogenesis Tanaka, Masanori High Energy Physics - Phenomenology High Energy Physics - Experiment We propose a mechanism called sphalerogenesis to explain the baryon asymmetry of the universe (BAU). The BAU is explained by a CP-violating decay of the electroweak sphaleron. We introduce a dimension-six operator constructed from weak gauge fields: $Q_{\widetilde{W}} \sim Λ^{-2} ε_{ijk} \widetilde{W}_{μν}^{i} W^{j νρ} W_ρ^{kμ}$. We find that the BAU can be explained if $Λ\simeq 38\,{\rm TeV}$. This scenario can be tested by electron electric dipole moment measurements in the near future. |
| title | Sphalerogenesis |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2505.09984 |