2002/10/03 by Thomas Hambye, Hambye, Thomas
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0210048
To appear in the proceedings of 14th Rencontres de Blois: Matter - Anti-matter Asymmetry, Blois, France, 17-22 Jun 2002, 9 pages
arxiv created 2002/10/03 · openalex publication_date 2002/10/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The problem of testing leptogenesis from low energy experiments is discussed following three different perspectives. Firstly, we review the prospects that from low energy experiments we could reconstruct the neutrino Yukawa coupling matrix and hence constrain the leptogenesis mechanism. We emphasize the fact that the experimental determination of the phases and mixings in the light neutrino mass matrix is irrelevant for leptogenesis, unless additional information about the texture of the Yukawa coupling matrix is provided by other observables. Secondly, we show how the discovery of an extra gauge boson could bring us important indications for leptogenesis. Thirdly, we discuss the problems one encounters when attempting to build a leptogenesis mechanism at a directly testable scale, presenting an explicit model which avoids these problems.