Muons in supernovae: implications for the axion-muon coupling
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2020
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| _version_ | 1866929368162369536 |
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| author | Bollig, Robert DeRocco, William Graham, Peter W. Janka, Hans-Thomas |
| author_facet | Bollig, Robert DeRocco, William Graham, Peter W. Janka, Hans-Thomas |
| contents | The high temperature and electron degeneracy attained during a supernova allow for the formation of a large muon abundance within the core of the resulting proto-neutron star. If new pseudoscalar degrees of freedom have large couplings to the muon, they can be produced by this muon abundance and contribute to the cooling of the star. By generating the largest collection of supernova simulations with muons to date, we show that observations of the cooling rate of SN 1987A place strong constraints on the coupling of axion-like particles to muons, limiting the coupling to $g_{aμ} < 10^{-7.5}~\text{GeV}^{-1}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2005_07141 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Muons in supernovae: implications for the axion-muon coupling Bollig, Robert DeRocco, William Graham, Peter W. Janka, Hans-Thomas High Energy Physics - Phenomenology High Energy Astrophysical Phenomena The high temperature and electron degeneracy attained during a supernova allow for the formation of a large muon abundance within the core of the resulting proto-neutron star. If new pseudoscalar degrees of freedom have large couplings to the muon, they can be produced by this muon abundance and contribute to the cooling of the star. By generating the largest collection of supernova simulations with muons to date, we show that observations of the cooling rate of SN 1987A place strong constraints on the coupling of axion-like particles to muons, limiting the coupling to $g_{aμ} < 10^{-7.5}~\text{GeV}^{-1}$. |
| title | Muons in supernovae: implications for the axion-muon coupling |
| topic | High Energy Physics - Phenomenology High Energy Astrophysical Phenomena |
| url | https://arxiv.org/abs/2005.07141 |