Work

Probing leptogenesis and the minimal neutrino seesaw mechanism through gravitational waves

Year: 2026

Type: article

Abstract: We propose that a gravitational wave can be generated during leptogenesis in the early Universe, which occurs during heavy right-handed neutrino decay. Such a gravitational wave, as a remnant of leptogenesis, is shown to be associated with distinguishing signatures that not only act as a powerful probe to leptogenesis but also to the existence of heavy seesaw states, which otherwise remain difficult to validate despite their success in explaining the baryon asymmetry of the Universe, closely connected to the origin of neutrino mass.

Source: Physical review. D/Physical review. D.

DOI: 10.1103/dcl6-fl76

Authors: Arghyajit Datta, Arunansu Sil

Institutions: Jeonbuk National University, Indian Institute of Technology Guwahati

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Kyungpook National University, National Research Foundation of Korea, Ministry of Science and ICT, South Korea, Science and Engineering Research Board

Awards: G4273600306, G5145447133, G528676541