Gravitational Waves in Metastable Supersymmetry Breaking
arXiv:2201.11323 · doi:10.1103/PhysRevD.105.123538
Abstract
If supersymmetry is broken in metastable vacua, it is not clear why we are now in there rather than supersymmetric vacua. Moreover, it is natural to expect that we were in supersymmetric vacua, which have higher symmetry than metastable vacua, in the early universe. In this paper, we reexamine and improve the previous analysis on the cosmological evolution of the vacuum structure in the ISS model of metastable supersymmetry breaking by taking into account constraints on the reheating temperature, which is needed to avoid the overproduction of gravitinos. It turns out that the desired phase transition from a supersymmetric vacuum to a metastable vacuum is allowed only in the light gravitino mass region eV. This is achieved by either rolling down potential or tunneling processes depending on the reheating temperature. We show that when the tunneling processes are realized, abundant gravitational waves could be produced from collisions of runaway bubbles. The resulting gravitational waves are detectable with the future gravitational wave interferometers like LISA and DECIGO.
22 pages, 4 figures
References in corpus (20)
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- Gravitational Wave Production by Collisions: More Bubbles
- Dynamical SUSY Breaking in Meta-Stable Vacua
- Big-Bang Nucleosynthesis and Gravitino
- Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
- General Gauge Mediation
- On the evidence for a common-spectrum process in the search for the nanohertz gravitational-wave background with the Parkes Pulsar Timing Array
- Gravitational wave generation from bubble collisions in first-order phase transitions: an analytic approach
- Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search
- Gravitational waves from stochastic relativistic sources: primordial turbulence and magnetic fields
- Lectures on Supersymmetry Breaking
- Gauge Mediation Simplified
- Gravitional radiation from first-order phase transitions in the presence of a fluid
- Detectability of Gravitational Waves from Phase Transitions
- Implementing General Gauge Mediation
- SUSY breaking by a metastable ground state: Why the early Universe preferred the non-supersymmetric vacuum
- NANOGrav Signal from First-Order Confinement/Deconfinement Phase Transition in Different QCD Matters
- Ripples in Spacetime from Broken Supersymmetry
- ISS-flation
- Gauge mediation without gravitino problem by virtue of the QCD anomaly