Nucleation at finite temperature: a gauge-invariant, perturbative framework

Löfgren, Johan; Ramsey-Musolf, Michael J.; Schicho, Philipp; Tenkanen, Tuomas V. I.

doi:10.48550/arxiv.2112.05472

Cited by 13 publications

(31 citation statements)

References 46 publications

(76 reference statements)

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“…Further, it has been demonstrated that one must include two-loop thermal effects to achieve better than O(1) numerical accuracy [664][665][666][667]. The thermodynamic quantity with largest uncertainty is presently the bubble nucleation rate, as it involves both spacetime dependence and near equilibrium physics, though recent work has improved its determination [668][669][670][671][672].…”

Section: [Contributor(s): Brian Shuve and Jessica Turner]mentioning

confidence: 99%

Early-Universe Model Building

Asadi,

Bansal,

Berlin

et al. 2022

Preprint

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Section: [Contributor(s): Brian Shuve and Jessica Turner]mentioning

confidence: 99%

Early-Universe Model Building

Asadi,

Bansal,

Berlin

et al. 2022

Preprint

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“…Its profile for T T c is important for the purpose. However, the locations of the extrema of V T , as well as the ratio φ c (T c )/T c , are both gauge-dependent [65, 96-100] 3 see, for example, references [90,[101][102][103][104]. We have checked the minimization of V T using both Landau and Feynman gauges and have found that the gauge-dependencies of both φ c (T c ) and T c are not significant for the benchmark scenarios we present.…”

Section: Effective Higgs Potential At Finite-temperaturementioning

confidence: 99%

Electroweak Phase Transition in the $Z_3$-invariant NMSSM Implications of LHC and Dark matter Searches and Prospects of Detecting the Gravitational Waves

Chatterjee,

Datta,

Roy

2022

Preprint

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We study in detail the viability and the patterns of a strong first-order electroweak phase transition as a prerequisite to electroweak baryogenesis in the framework of Z 3 -invariant Next-to-Minimal Supersymmetric Standard Model (NMSSM), in the light of recent experimental results from the Higgs sector, dark matter (DM) searches and those from the searches of the lighter chargino and neutralinos at the Large Hadron Collider (LHC). For the latter, we undertake thorough recasts of the relevant, recent LHC analyses. With the help of a few benchmark scenarios, we demonstrate that while the LHC has started to eliminate regions of the parameter space with relatively small µ eff , that favors the coveted strong firstorder phase transition, rather steadily, there remains phenomenologically much involved and compatible regions of the same which are yet not sensitive to the current LHC analyses. It is further noted that such a region could also be compatible with all pertinent theoretical and experimental constraints. We then proceed to analyze the prospects of detecting the stochastic gravitational waves, which are expected to arise from such a phase transition, at various future/proposed experiments, within the mentioned theoretical framework and find them to be somewhat ambitious under the currently projected sensitivities of those experiments.

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“…With upcoming gravitational wave detectors like LISA offering enhanced observational prospects for cosmological gravitational wave backgrounds, there have been increased efforts to understand first-order phase transitions in precise detail. Recent years have seen advances in the determination of the asymptotic wall speed for expanding bubbles [8][9][10][11][12][13][14][15][16], more precise calculations of the thermodynamic phase transition parameters and nucleation rates [17][18][19][20][21][22][23][24][25][26], and refined baryogenesis computations [27][28][29][30][31]. Holographic techniques have been used to compute phase transition parameters and gravitational wave signals [12,16,[32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Droplet collapse during strongly supercooled transitions

Cutting¹,

Essi²,

Weir³

2022

Preprint

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We simulate the decay of isolated, spherically symmetric droplets in a cosmological phase transition. It has long been posited that such heated droplets of the metastable state could form, and they have recently been observed in 3D multi-bubble simulations. In those simulations, the droplets were associated with a reduction in the wall velocity and a decrease in the kinetic energy of the fluid, with a consequent suppression in the gravitational wave power spectrum. In the present work, we track the wall speed and kinetic energy production in isolated droplets and compare them to those found in multi-bubble collisions. The late-time wall velocities that we observe match those of the 3D simulations, though we find that the spherical simulations are a poor predictor of the kinetic energy production. This implies that spherically symmetric simulations could be used to refine baryogenesis predictions due to the formation of droplets, but not to estimate any accompanying suppression of the gravitational wave signal.

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Nucleation at finite temperature: a gauge-invariant, perturbative framework

Cited by 13 publications

References 46 publications

Early-Universe Model Building

Early-Universe Model Building

Electroweak Phase Transition in the $Z_3$-invariant NMSSM Implications of LHC and Dark matter Searches and Prospects of Detecting the Gravitational Waves

Droplet collapse during strongly supercooled transitions

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