Work of U.A.is supported in part by the Chinese Academy of Sciences President's International Fellowship Initiative(PIFI)(2020PM0019);the Institute of High Energy Physics,Chinese Academy of Sciences(Y9291120K2).J.R.is supported by the Institute of High Energy Physics(Y9291120K2)。
Primordial black holes have been considered attractive dark matter candidates,whereas some of the predictions rely heavily on the near-horizon physics that remains to be tested experimentally.As a concrete alternative...
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
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...
The original mimetic model was proposed to take the role of dark matter. In this paper we consider possible direct interactions of mimetic dark matter with other matter in the universe, especially standard model parti...