TY  - JOUR
AU  - Barenboim, G.
AU  - Rasero, J.
PY  - 2014
DA  - 2014//
TI  - Structure formation during an early period of matter domination
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 138
EP  - 17pp
VL  - 04
IS  - 4
PB  - Springer
KW  - Cosmology of Theories beyond the SM
KW  - Beyond Standard Model
AB  - In this work we show that modifying the thermal history of the Universe by including an early period of matter domination can lead to the formation of astronomical objects. However, the survival of these objects can only be possible if the dominating matter decays to a daughter particle which is not only almost degenerate with the parent particle but also has an open annihilation channel. This requirement translates in an upper bound for the coupling of such a channel and makes the early structure formation viable.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1311.4034
UR  - https://doi.org/10.1007/JHEP04(2014)138
DO  - 10.1007/JHEP04(2014)138
LA  - English
N1  - WOS:000335452600003
ID  - Barenboim+Rasero2014
ER  -