Semantic Scholar Open Access 2019 103 sitasi

Probing the scale of grand unification with gravitational waves

W. Buchmuller V. Domcke H. Murayama K. Schmitz

Lihat Sumber DOI

Abstrak

Abstract The spontaneous breaking of U ( 1 ) B − L around the scale of grand unification can simultaneously account for hybrid inflation, leptogenesis, and neutralino dark matter, thus resolving three major puzzles of particle physics and cosmology in a single predictive framework. The B − L phase transition also results in a network of cosmic strings. If strong and electroweak interactions are unified in an S O ( 10 ) gauge group, containing U ( 1 ) B − L as a subgroup, these strings are metastable. In this case, they produce a stochastic background of gravitational waves that evades current pulsar timing bounds, but features a flat spectrum with amplitude h 2 Ω GW ∼ 10 − 8 at interferometer frequencies. Ongoing and future LIGO observations will hence probe the scale of B − L breaking.

Topik & Kata Kunci

Physics

Penulis (4)

W. Buchmuller

V. Domcke

H. Murayama

K. Schmitz

Format Sitasi

APA MLA BibTeX

Buchmuller, W., Domcke, V., Murayama, H., Schmitz, K. (2019). Probing the scale of grand unification with gravitational waves. https://doi.org/10.1016/J.PHYSLETB.2020.135764

Akses Cepat

Lihat di Sumber doi.org/10.1016/J.PHYSLETB.2020.135764

Informasi Jurnal

Tahun Terbit: 2019
Bahasa: en
Total Sitasi: 103×
Sumber Database: Semantic Scholar
DOI: 10.1016/J.PHYSLETB.2020.135764
Akses: Open Access ✓