A Scenario for Asymmetric Genesis of Matter  

作　　者：Risto Raitio Risto Raitio(Department of Physics, University of Helsinki, Helsinki, Finland)

机构地区：[1]Department of Physics, University of Helsinki, Helsinki, Finland

出　　处：《Journal of High Energy Physics, Gravitation and Cosmology》2023年第3期654-665,共12页高能物理（英文）

摘　　要：A previous preon scenario for the standard model particles, based on unbroken supersymmetry, is applied to the problem of matter-antimatter asymmetry. Attention is paid to the fact that the asymmetric hydrogen atom—like all atoms—can be described in terms of symmetric preons. Preons are created in the early universe. The matter-antimatter asymmetry is caused by stochastic correlations in charge density fluctuations of preons and antipreons and by the subsequent preon combinatorial mechanism to form quarks and leptons, and finally the three lightest elements. A tentative gravitino mass estimate is given based on minimal interference with nucleosynthesis. With local supersymmetry the scenario can be extended to supergravity.A previous preon scenario for the standard model particles, based on unbroken supersymmetry, is applied to the problem of matter-antimatter asymmetry. Attention is paid to the fact that the asymmetric hydrogen atom—like all atoms—can be described in terms of symmetric preons. Preons are created in the early universe. The matter-antimatter asymmetry is caused by stochastic correlations in charge density fluctuations of preons and antipreons and by the subsequent preon combinatorial mechanism to form quarks and leptons, and finally the three lightest elements. A tentative gravitino mass estimate is given based on minimal interference with nucleosynthesis. With local supersymmetry the scenario can be extended to supergravity.

关 键 词：Standard Model and Beyond Preons SUPERGRAVITY INFLATION Baryon and Lepton Genesis General Relativity 

分 类 号：O57[理学—粒子物理与原子核物理]