RECORD
Gravitational Wave Signatures from Domain Wall and Strong First-Order Phase Transitions in a Two Complex Scalar extension of the Standard Model
High Energy Physics - Phenomenology · Submitted 7 Oct 2020
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The unstable annihilating domain walls produce a significant amount of gravitational waves (GWs).
The compiled record
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
Open the compiled record
The abstract, sentence by sentence
We consider a simple extension of Standard Model by adding two complex singlet scalars with a $\rm{U}\left(1\right)$ symmetry. A discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry is imposed in the model and the added scalars acquire a non zero vacuum expectation value (VEV) when the imposed symmetry is broken spontaneously. The real (CP even) parts of the complex scalars mix with the SM Higgs and give three physical mass eigenstates. One of these physical mass eigenstates is attributed to the SM like Higgs boson with mass 125.09 GeV. In the present scenario, domain walls are formed in the early Universe due to the breaking of discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry. In order to ensure the unstability of the domain wall this discrete symmetry is also explicitly broken by adding a bias potential to the Lagrangian. The unstable annihilating domain walls produce a significant amount of gravitational waves (GWs). In addition, we also explore the possibility of the production of GW emission from the strong first-order phase transition. We calculate the intensities and frequencies of each of such gravitational waves originating from two different phenomena of the early Universe namely annihilating domain walls and strong first-order phase transition. Finally, we investigate the observational signatures from these GWs at the future GW detectors such as ALIA, BBO, DECIGO, LISA, TianQin, Taiji, aLIGO, aLIGO+ and pulsar timing arrays such as SKA, IPTA, EPTA, PPTA, NANOGrav11 and NANOGrav12.5.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We consider a simple extension of Standard Model by adding two complex singlet scalars with a $\rm{U}\left(1\right)$ symmetry. | contribution 0.70 | 0.58 | 0.02 | asserted 0.94 |
| s1 | A discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry is imposed in the model and the added scalars acquire a non zero vacuum expectation value (VEV) when the imposed symmetry is broken spontaneously. | method 0.73 | 0.53 | 0.03 | asserted 1.00 |
| s2 | The real (CP even) parts of the complex scalars mix with the SM Higgs and give three physical mass eigenstates. | method 0.45 | 0.58 | 0.03 | asserted 1.00 |
| s3 | One of these physical mass eigenstates is attributed to the SM like Higgs boson with mass 125.09 GeV. | result 0.74 | 0.52 | 0.04 | asserted 1.00 |
| s4 | In the present scenario, domain walls are formed in the early Universe due to the breaking of discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry. | contribution 0.41 | 0.45 | 0.07 | asserted 1.00 |
| s5 | In order to ensure the unstability of the domain wall this discrete symmetry is also explicitly broken by adding a bias potential to the Lagrangian. | method 0.84 | 0.77 | 0.04 | asserted 0.98 |
| s6 | The unstable annihilating domain walls produce a significant amount of gravitational waves (GWs). | result 0.87 | 0.50 | 0.30 | asserted 1.00 |
| s7 | In addition, we also explore the possibility of the production of GW emission from the strong first-order phase transition. | contribution 0.99 | 0.62 | 0.06 | hedged possibility 0.99 |
| s8 | We calculate the intensities and frequencies of each of such gravitational waves originating from two different phenomena of the early Universe namely annihilating domain walls and strong first-order phase transition. | contribution 0.75 | 0.95 | 0.17 | asserted 1.00 |
| s9 | Finally, we investigate the observational signatures from these GWs at the future GW detectors such as ALIA, BBO, DECIGO, LISA, TianQin, Taiji, aLIGO, aLIGO+ and pulsar timing arrays such as SKA, IPTA, EPTA, PPTA, NANOGrav11 and NANOGrav12.5. | contribution 0.81 | 0.84 | 0.18 | asserted 0.93 |
What was examined, and what was not
- arXiv listing abstract v2
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
- T body sentences
- C citations
- R cross-paper relations
The paper
Original abstract
We consider a simple extension of Standard Model by adding two complex singlet scalars with a $\rm{U}\left(1\right)$ symmetry. A discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry is imposed in the model and the added scalars acquire a non zero vacuum expectation value (VEV) when the imposed symmetry is broken spontaneously. The real (CP even) parts of the complex scalars mix with the SM Higgs and give three physical mass eigenstates. One of these physical mass eigenstates is attributed to the SM like Higgs boson with mass 125.09 GeV. In the present scenario, domain walls are formed in the early Universe due to the breaking of discrete $\mathcal{Z}_2 \times \mathcal{Z}^{\prime}_2$ symmetry. In order to ensure the unstability of the domain wall this discrete symmetry is also explicitly broken by adding a bias potential to the Lagrangian. The unstable annihilating domain walls produce a significant amount of gravitational waves (GWs). In addition, we also explore the possibility of the production of GW emission from the strong first-order phase transition. We calculate the intensities and frequencies of each of such gravitational waves originating from two different phenomena of the early Universe namely annihilating domain walls and strong first-order phase transition. Finally, we investigate the observational signatures from these GWs at the future GW detectors such as ALIA, BBO, DECIGO, LISA, TianQin, Taiji, aLIGO, aLIGO+ and pulsar timing arrays such as SKA, IPTA, EPTA, PPTA, NANOGrav11 and NANOGrav12.5.
Human review
References
How the literature uses it
19 arXiv papers cite this in 20 sentences
Papers citing it · 12 sentences without a confident label
Cites it as background 8 papers
-
Various possible sources of the signal have been proposed, including cosmic strings [ref] , first-order cosmological phase transitions [ref] , coherent oscillation of axionic fields [ref] , and primordial black holes [ref] .
Testing clockwork axion with gravitational waves · NANOGrav pulsar timing observations · 0.94
-
[Besides the inflationary interpretation I put forward in Ref. [ref] , the NANOGrav 12.5-year signal (and the related PPTA, EPTA, and IPTA signals) stimulated a lot of work devoted to possible theoretical interpretations: for an inevitably limited selection of examples, see e.g. Refs. [ref] .] The resulting joint $log_10r$-$n_T$ posterior is shown in Fig. [ref].
Inflationary interpretation of the stochastic gravitational wave background signal detected by pulsar timing array experiments · Results and discussions · 0.99
-
Some of the earliest interpretations of the NANOGrav signal involved cosmic strings [ref] or second-order effects associated to the formation of primordial BHs from the collapse of large curvature perturbations [ref] , but various other theoretical scenarios have been considered since then (see e.g. Refs. [ref] for examples, as well as Ref. [ref] for a comprehensive characterization of various possible sources for the NANOGrav signal).
Primordial gravitational waves from NANOGrav: a broken power-law approach · Introduction · 1.00
What it cites · 6 sentences without a confident label
Compares with 1 paper
-
We perform a direct comparison between our calculated model-dependent GW intensity with the sensitivity plots [ref] of PTAs such as SKA, IPTA, EPTA, PPTA, NANOGrav11 and NANOGrav12.5 for the domain wall case and found that the calculations using BP 4 lie within the sensitivity curves of SKA and IPTA.
New Sensitivity Curves for Gravitational-Wave Signals from Cosmological Phase Transitions · Calculations and Results · 0.92
Discussion
Know something about this paper? Leave a comment, or highlight any passage above to comment on it.