scholarly journals Gravitational wave signatures from dark sector interactions

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Reginald Christian Bernardo
Keyword(s):  
Gravitational Wave ◽  
Dark Sector

scholarly journals Gravitational wave constraints on dark sector models

2018 ◽  
Vol 98 (2) ◽  
Author(s):  
Richard A. Battye ◽  
Francesco Pace ◽  
Damien Trinh
Keyword(s):  
Gravitational Wave ◽  
Dark Sector

scholarly journals Listening to the sound of dark sector interactions with gravitational wave standard sirens

2019 ◽  
Vol 2019 (07) ◽  
pp. 037-037 ◽  
Author(s):  
Weiqiang Yang ◽  
Sunny Vagnozzi ◽  
Eleonora Di Valentino ◽  
Rafael C. Nunes ◽  
Supriya Pan ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Dark Sector

scholarly journals Gravitational wave from dark sector with dark pion

2017 ◽  
Vol 2017 (07) ◽  
pp. 044-044 ◽  
Author(s):  
Koji Tsumura ◽  
Masatoshi Yamada ◽  
Yuya Yamaguchi
Keyword(s):  
Gravitational Wave ◽  
Dark Sector

scholarly journals The benefits of diligence: how precise are predicted gravitational wave spectra in models with phase transitions?

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Huai-Ke Guo ◽  
Kuver Sinha ◽  
Daniel Vagie ◽  
Graham White
Keyword(s):  
Phase Transition ◽  
Phase Transitions ◽  
Gravitational Wave ◽  
Parameter Space ◽  
Particle Physics ◽  
Fluid Velocity ◽  
Wave Spectrum ◽  
Dark Sector ◽  
Model Approximation ◽  
Bubble Separation

Abstract Models of particle physics that feature phase transitions typically provide predictions for stochastic gravitational wave signals at future detectors and such predictions are used to delineate portions of the model parameter space that can be constrained. The question is: how precise are such predictions? Uncertainties enter in the calculation of the macroscopic thermal parameters and the dynamics of the phase transition itself. We calculate such uncertainties with increasing levels of sophistication in treating the phase transition dynamics. Currently, the highest level of diligence corresponds to careful treatments of the source lifetime; mean bubble separation; going beyond the bag model approximation in solving the hydrodynamics equations and explicitly calculating the fraction of energy in the fluid from these equations rather than using a fit; and including fits for the energy lost to vorticity modes and reheating effects. The lowest level of diligence incorporates none of these effects. We compute the percolation and nucleation temperatures, the mean bubble separation, the fluid velocity, and ultimately the gravitational wave spectrum corresponding to the level of highest diligence for three explicit examples: SMEFT, a dark sector Higgs model, and the real singlet-extended Standard Model (xSM). In each model, we contrast different levels of diligence in the calculation and find that the difference in the final predicted signal can be several orders of magnitude. Our results indicate that calculating the gravitational wave spectrum for particle physics models and deducing precise constraints on the parameter space of such models continues to remain very much a work in progress and warrants care.

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