Collision integrals for cosmological phase transitions
Abstract The dynamics of the true-vacuum bubbles nucleated during a first-order phase transition is affected by the distribution functions of the particle species in the plasma, driven out-of-equilibrium by the travelling domain wall. An accurate modelling of this phenomenon is relevant for a quanti...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP05(2023)194 |
| _version_ | 1827859832385830912 |
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| author | Stefania De Curtis Luigi Delle Rose Andrea Guiggiani Ángel Gil Muyor Giuliano Panico |
| author_facet | Stefania De Curtis Luigi Delle Rose Andrea Guiggiani Ángel Gil Muyor Giuliano Panico |
| author_sort | Stefania De Curtis |
| collection | DOAJ |
| description | Abstract The dynamics of the true-vacuum bubbles nucleated during a first-order phase transition is affected by the distribution functions of the particle species in the plasma, driven out-of-equilibrium by the travelling domain wall. An accurate modelling of this phenomenon is relevant for a quantitative description of phase transitions in the early universe and for the determination of the corresponding cosmic relics, such as, among the others, the stochastic background of gravitational waves. We address this problem by developing a new spectral method devised for a fast and reliable computation of the collision integral in the Boltzmann equations. In a scalar singlet extension of the Standard Model chosen as a benchmark scenario, we test our algorithm, determining the bubble speed and profile, and we assess the impact of the out-of-equilibrium dynamics. |
| first_indexed | 2024-03-12T13:14:19Z |
| format | Article |
| id | doaj.art-364421567c094f21a8deb85d6a1ff4c5 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-12T13:14:19Z |
| publishDate | 2023-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-364421567c094f21a8deb85d6a1ff4c52023-08-27T11:04:12ZengSpringerOpenJournal of High Energy Physics1029-84792023-05-012023512210.1007/JHEP05(2023)194Collision integrals for cosmological phase transitionsStefania De Curtis0Luigi Delle Rose1Andrea Guiggiani2Ángel Gil Muyor3Giuliano Panico4INFN Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di FirenzeDipartimento di Fisica, Università della CalabriaINFN Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di FirenzeIFAE and BIST, Universitat Autònoma de BarcelonaINFN Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di FirenzeAbstract The dynamics of the true-vacuum bubbles nucleated during a first-order phase transition is affected by the distribution functions of the particle species in the plasma, driven out-of-equilibrium by the travelling domain wall. An accurate modelling of this phenomenon is relevant for a quantitative description of phase transitions in the early universe and for the determination of the corresponding cosmic relics, such as, among the others, the stochastic background of gravitational waves. We address this problem by developing a new spectral method devised for a fast and reliable computation of the collision integral in the Boltzmann equations. In a scalar singlet extension of the Standard Model chosen as a benchmark scenario, we test our algorithm, determining the bubble speed and profile, and we assess the impact of the out-of-equilibrium dynamics.https://doi.org/10.1007/JHEP05(2023)194Cosmology of Theories BSMEarly Universe Particle PhysicsPhase Transitions in the Early Universe |
| spellingShingle | Stefania De Curtis Luigi Delle Rose Andrea Guiggiani Ángel Gil Muyor Giuliano Panico Collision integrals for cosmological phase transitions Journal of High Energy Physics Cosmology of Theories BSM Early Universe Particle Physics Phase Transitions in the Early Universe |
| title | Collision integrals for cosmological phase transitions |
| title_full | Collision integrals for cosmological phase transitions |
| title_fullStr | Collision integrals for cosmological phase transitions |
| title_full_unstemmed | Collision integrals for cosmological phase transitions |
| title_short | Collision integrals for cosmological phase transitions |
| title_sort | collision integrals for cosmological phase transitions |
| topic | Cosmology of Theories BSM Early Universe Particle Physics Phase Transitions in the Early Universe |
| url | https://doi.org/10.1007/JHEP05(2023)194 |
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