Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-07-10
Nucl.Phys. B631 (2002) 342-368
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
30 pages, 20 figures
Scientific paper
10.1016/S0550-3213(02)00264-X
Gravitational waves are generated during first-order phase transitions, either by turbolence or by bubble collisions. If the transition takes place at temperatures of the order of the electroweak scale, the frequency of these gravitational waves is today just within the band of the planned space interferometer LISA. We present a detailed analysis of the production of gravitational waves during an electroweak phase transition in different supersymmetric models where, contrary to the case of the Standard Model, the transition can be first order. We find that the stochastic background of gravitational waves generated by bubble nucleation can reach a maximum value h0^2 Omega_{gw} of order 10^{-10} - 10^{-11}, which is within the reach of the planned sensitivity of LISA, while turbolence can even produce signals at the level h0^2 Omega_{gw} \sim 10^{-9}. These values of h0^2 Omega_{gw} are obtained in the regions of the parameter space which can account for the generation of the baryon asymmetry at the electroweak scale.
Apreda Riccardo
Maggiore Michele
Nicolis Alberto
Riotto Antonio
No associations
LandOfFree
Gravitational Waves from Electroweak Phase Transitions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Gravitational Waves from Electroweak Phase Transitions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Waves from Electroweak Phase Transitions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-419408