Sound velocity effects on the phase transition gravitational wave spectrum in the sound shell model
نویسندگان
چکیده
A cosmological first-order phase transition gravitational wave could provide a novel approach to studying the early Universe. In most cases, acoustic from sound mechanism is dominant. Considering different velocities in symmetric and broken phases, we study velocity effects on spectra shell model. We demonstrate that obviously modify peak frequency amplitude of power spectra. Therefore, taking more realistic might accurate predictions for various experiments.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevd.105.103513