Gravitational wave stochastic background from cosmological particle decay
We assume that the cosmological dark matter is composed of massive neutral scalar particles that decay into two massless particles. The decay produces a stochastic background of gravitational waves (GWs) via a “memory effect” mechanism. We calculate the spectral amplitude and slope of the resulting...
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-02-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.012034 |