PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T01 Astroparticle Physics and Gravitational Waves
A Stochastic Gravitational Waves Background Coming from a Double Peak Domain Wall Model
C.A. Miritescu*, A. Macquet, M. Martinez Perez, R. Zambujal Ferreira and O. Pujolas
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Pre-published on: December 14, 2023
Published on: March 21, 2024
We performed an agnostic search in the data from the first three observing runs of LIGO - Advanced LIGO and Virgo - Advanced Virgo for a novel model of stochastic gravitational waves background (SGWB). The SGWB power spectrum is produced, in this case, by a superposition of the stochastic compact binary coalescence signals (CBCs) and a double-peaked gravitational waves domain wall model. The two peaks were characterized using broken power-law models. We placed a $95\%$ confidence level upper limits on the gravitational wave energy density at $25 Hz$ from CBCs and, simultaneously, on the amplitude of the two peaks. Detection prospects using these upper limit values are discussed for third generation detectors, such as the Einstein Telescope.
DOI: https://doi.org/10.22323/1.449.0074
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