Limiting first-order phase transitions in dark gauge sectors from gravitational waves experiments

Addazi, Andrea

doi:10.1142/s0217732317500493

Cited by 36 publications

(27 citation statements)

References 45 publications

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“…The possibility of detecting GWs from a PT in a dark sector was explored in [180] in models of composite dark sectors, and further explored in a variety of other DM scenarios in [69,[181][182][183][184][185][186][187][188][189][190][191][192]. While of course any hidden sector could be engineered to feature a cosmological PT, scenarios in which the PT serves a specific purpose can yield specific predictions for GW signals at LISA.…”

Section: First Order Pts In a Dark Sectormentioning

confidence: 99%

Detecting gravitational waves from cosmological phase transitions with LISA: an update

Caprini

Chala

Dorsch

et al. 2020

J. Cosmol. Astropart. Phys.

612

800

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We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in the cosmic fluid after the phase transition completes. We discuss the various sources of gravitational radiation, the underlying parameters describing the phase transition and a variety of viable particle physics models in this context, clarifying common misconceptions that appear in the literature and identifying open questions requiring future study. We also present a web-based tool, PTPlot, that allows users to obtain up-to-date detection prospects for a given set of phase transition parameters at LISA.

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Section: First Order Pts In a Dark Sectormentioning

confidence: 99%

Detecting gravitational waves from cosmological phase transitions with LISA: an update

Caprini

Chala

Dorsch

et al. 2020

J. Cosmol. Astropart. Phys.

612

800

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“…In this paper, we expand on past studies of gravitational waves from hidden sector phase transitions [8][9][10][11][12][13][14][15][16][17] in several ways:…”

Section: Contentsmentioning

confidence: 99%

Dark, cold, and noisy: constraining secluded hidden sectors with gravitational waves

Breitbach

Kopp

Madge

et al. 2019

J. Cosmol. Astropart. Phys.

188

191

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We explore gravitational wave signals arising from first-order phase transitions occurring in a secluded hidden sector, allowing for the possibility that the hidden sector may have a different temperature than the Standard Model sector. We present the sensitivity to such scenarios for both current and future gravitational wave detectors in a model-independent fashion. Since secluded hidden sectors are of particular interest for dark matter models at the MeV scale or below, we pay special attention to the reach of pulsar timing arrays. Cosmological constraints on light degrees of freedom restrict the number of sub-MeV particles in a hidden sector, as well as the hidden sector temperature. Nevertheless, we find that observable first-order phase transitions can occur. To illustrate our results, we consider two minimal benchmark models: a model with two gauge singlet scalars and a model with a spontaneously broken U (1) gauge symmetry in the hidden sector. CONTENTS

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“…Given the scaling of the volume and surface energies of a bubble with its radius, there is a minimum bubble size above which it will expand. The probability of nucleating such a bubble is set by an action, determined from the field 11 In transitions with subsonic walls speeds, the plasma ahead of the bubble walls is also heated.…”

Section: Phase Transitionsmentioning

confidence: 99%

Hearing without seeing: gravitational waves from hot and cold hidden sectors

Fairbairn

Hardy

Wickens

2019

J. High Energ. Phys.

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We study the spectrum of gravitational waves produced by a first order phase transition in a hidden sector that is colder than the visible sector. In this scenario, bubbles of the hidden sector vacuum can be nucleated through either thermal fluctuations or quantum tunnelling. If a cold hidden sector undergoes a thermally induced transition, the amplitude of the gravitational wave signal produced will be suppressed and its peak frequency shifted compared to if the hidden and visible sector temperatures were equal. This could lead to signals in a frequency range that would otherwise be ruled out by constraints from big bang nucleosynthesis. Alternatively, a sufficiently cold hidden sector could fail to undergo a thermal transition and subsequently transition through the nucleation of bubbles by quantum tunnelling. In this case the bubble walls might accelerate with completely negligible friction. The resulting gravitational wave spectrum has a characteristic frequency dependence, which may allow such cold hidden sectors to be distinguished from models in which the hidden and visible sector temperatures are similar. We compare our results to the sensitivity of the future gravitational wave experimental programme. arXiv:1901.11038v2 [hep-ph] 15 Jul 2019 2 The contribution to the zero temperature potential from φ itself is of the form V = 1 64π 2 (V (φ)) 2 log( V (φ) w 2 ). Since V ∼ 9g 4 w 2 /(64π 2 ) our analysis is consistent for g ∼ 1.

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Limiting first-order phase transitions in dark gauge sectors from gravitational waves experiments

Cited by 36 publications

References 45 publications

Detecting gravitational waves from cosmological phase transitions with LISA: an update

Detecting gravitational waves from cosmological phase transitions with LISA: an update

Dark, cold, and noisy: constraining secluded hidden sectors with gravitational waves

Hearing without seeing: gravitational waves from hot and cold hidden sectors

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