Induced Gravitational Waves as Cosmic Tracers of Leptogenesis
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arXiv
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| Format: | Preprint |
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2025
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| author | Chianese, Marco Domènech, Guillem Papanikolaou, Theodoros Samanta, Rome Saviano, Ninetta |
| author_facet | Chianese, Marco Domènech, Guillem Papanikolaou, Theodoros Samanta, Rome Saviano, Ninetta |
| contents | We demonstrate that induced gravitational waves (IGWs) can naturally emerge within the framework of thermal leptogenesis models, thereby providing a robust probe for exploring this theory at remarkably high energy scales. To illustrate this principle, we put forth a basic leptogenesis model in which an early matter-dominated phase, tracing the leptogenesis scale, enhances the generation of gravitational waves induced by an early structure formation. Leveraging recent N-body and lattice simulation results for IGW computations in the non-linear regime, we show that it is possible to establish a direct link between the frequency and amplitude of these IGWs and the thermal leptogenesis scale. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_20135 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Induced Gravitational Waves as Cosmic Tracers of Leptogenesis Chianese, Marco Domènech, Guillem Papanikolaou, Theodoros Samanta, Rome Saviano, Ninetta High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology We demonstrate that induced gravitational waves (IGWs) can naturally emerge within the framework of thermal leptogenesis models, thereby providing a robust probe for exploring this theory at remarkably high energy scales. To illustrate this principle, we put forth a basic leptogenesis model in which an early matter-dominated phase, tracing the leptogenesis scale, enhances the generation of gravitational waves induced by an early structure formation. Leveraging recent N-body and lattice simulation results for IGW computations in the non-linear regime, we show that it is possible to establish a direct link between the frequency and amplitude of these IGWs and the thermal leptogenesis scale. |
| title | Induced Gravitational Waves as Cosmic Tracers of Leptogenesis |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2504.20135 |