Probing Left-Right Symmetry via Gravitational Waves from Domain Walls

Abstract

We study the possibility of probing the scale of left-right symmetry breaking in the context of left-right symmetric models (LRSM). In LRSM, the right handed fermions transform as doublets under a newly introduced $SU(2{)}_R$ gauge symmetry. This, along with a discrete parity symmetry $\mathcal{P}$ ensuring identical gauge couplings of left and right sectors make the model left-right symmetric, providing a dynamical origin of parity violation in electroweak interactions via spontaneous symmetry breaking. The spontaneous breaking of $\mathcal{P}$ leads to the formation of domain walls in the early universe. These walls, if made unstable by introducing an explicit parity breaking term, generate gravitational waves (GW) with a spectrum characterized by the wall tension or the spontaneous $\mathcal{P}$ breaking scale, and the explicit $\mathcal{P}$ breaking term. Considering explicit $\mathcal{P}$ breaking terms to originate from Planck suppressed operators provides one-to-one correspondence between the scale of left-right symmetry and sensitivities of near future GW experiments. This is not only complementary to collider and low energy probes of TeV scale LRSM but also to GW generated from first order phase transition in LRSM with different spectral shape, peak frequencies as well as symmetry breaking scales.

8 pages, 4 figures, matches version accepted for publication in Phys. Rev. D

References in corpus (27)

• Advanced LIGO
• Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
• Left-Right Symmetry: from LHC to Neutrinoless Double Beta Decay
• Relating gravitational wave constraints from primordial nucleosynthesis, pulsar timing, laser interferometers, and the CMB: implications for the early universe
• Exploring the Early Universe with Gaia and THEIA
• TeV Scale Left-Right Symmetry and Large Mixing Effects in Neutrinoless Double Beta Decay
• Unification, Proton Decay and Topological Defects in non-SUSY GUTs with Thresholds
• Observational Constraints on Theories with a Blue Spectrum of Tensor Modes
• Gravitational shine of dark domain walls
• P not PQ
• Gravitational wave signatures from discrete flavor symmetries
• Baryon and Lepton Number Violation from Gravitational Waves
• A low-energy perspective on the minimal left-right symmetric model
• Type III Seesaw and Left-Right Symmetry
• Left-right symmetry and leading contributions to neutrinoless double beta decay
• Prospects of gravitational waves in the minimal left-right symmetric model
• Gravitational Wave Imprints of Left-Right Symmetric Model with Minimal Higgs Sector
• Stability of domain walls in models with asymmetric potentials
• Observing Left-Right Symmetry in the Cosmic Microwave Background
• Probing Miracle-less WIMP Dark Matter via Gravitational Waves Spectral Shapes
• Domain walls and gravitational waves in the Standard Model
• Gravitational Wave Signatures from Domain Wall and Strong First-Order Phase Transitions in a Two Complex Scalar extension of the Standard Model
• Sterile Neutrino Dark Matter and Leptogenesis in Left-Right Higgs Parity
• Heavy dark matter and Gravitational waves
• Probing Higgs exotic decay at the LHC with machine learning
• Spontaneous Parity Breaking, Gauge Coupling Unification and Consistent Cosmology with Transitory Domain Walls
• Domain walls and CP violation with left right supersymmetry:implications for leptogenesis and electron EDM

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• Left-Right Symmetry Breaking and Gravitational Waves : A Tale of Two Phase Transitions
• Gravitational Wave Signatures of Gauged Baryon and Lepton Number
• Gravitational wave signature of generic disappearance of $Z_2$-symmetry breaking domain walls
• Collapsing domain walls with ${\mathbb{Z}}_2$-violating coupling to thermalized fermions and their impact on gravitational wave detections
• Probing the Neutrino Seesaw Scale with Gravitational Waves
• Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model