摘要
We elaborate on a toy model of matter bounce, in which the matter content is constituted by two fermion species endowed with four fermion interaction terms. We describe the curvaton mechanism that is thus generated, and then argue that one of the two fermionic species may realize baryogenesis, while the other（lighter） one is compatible with constraints on extra hot dark matter particles.
We elaborate on a toy model of matter bounce, in which the matter content is constituted by two fermion species endowed with four fermion interaction terms. We describe the curvaton mechanism that is thus generated, and then argue that one of the two fermionic species may realize baryogenesis, while the other（lighter） one is compatible with constraints on extra hot dark matter particles.
作者
Andrea Addazi
Stephon Alexander
Yi-Fu Cai
Anloonino Marcianb
Andrea Addazi;Stephon Alexander;蔡一夫;Antonino Marcianò(Department of Physics & Center for Field Theory and Particle Physics,Fudan University;Department of Physics,Brown University;CAS Key Laboratory for Research in Galaxies and Cosmology,Department of Astronomy,University of Science and Technology of China,Chinese Academy of Sciences)
基金
partially supported during this collaboration by the MIUR research grant Theoretical Astroparticle Physics PRIN 2012CPPYP7
SdC Progetto speciale Multiasse La Societàdella Conoscenza in Abruzzo PO FSE Abruzzo 2007-2013
supported in part by the Chinese National Youth Thousand Talents Program(KJ2030220006)
the USTC start-up funding(KY2030000049)
the NSFC(11421303,11653002)
the Fund for Fostering Talents in Basic Science of the NSFC(J1310021)
support by the Shanghai Municipality,through the grant No.KBH1512299
Fudan University,through the grant No.JJH1512105
