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, a...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.展开更多
基金partially supported during this collaboration by the MIUR research grant Theoretical Astroparticle Physics PRIN 2012CPPYP7SdC Progetto speciale Multiasse La Societàdella Conoscenza in Abruzzo PO FSE Abruzzo 2007-2013+5 种基金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.KBH1512299Fudan University,through the grant No.JJH1512105
文摘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.
