TY  - JOUR
AU  - Bhattacharya, S.
AU  - Mondal, N.
AU  - Roshan, R.
AU  - Vatsyayan, D.
PY  - 2024
DA  - 2024//
TI  - Leptogenesis, dark matter and gravitational waves from discrete symmetry breaking
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology and Astroparticle Physics
SP  - 029
EP  - 25pp
VL  - 06
IS  - 6
PB  - IOP Publishing Ltd
KW  - leptogenesis
KW  - dark matter theory
KW  - gravitational waves / theory
AB  - We analyse a model that connects the neutrino sector and the dark sector of the universe via a mediator 41., stabilised by a discrete Z4 symmetry that breaks to a remnant Z2 upon 41. acquiring a non -zero vacuum expectation value (v phi). The model accounts for the observed baryon asymmetry of the universe via additional contributions to the canonical Type -I leptogenesis. The Z4 symmetry breaking scale (v phi) in the model not only establishes a connection between the neutrino sector and the dark sector, but could also lead to gravitational wave signals that are within the reach of current and future experimental sensitivities.
SN  - 1475-7516
UR  - https://arxiv.org/abs/2312.15053
UR  - https://doi.org/10.1088/1475-7516/2024/06/029
DO  - 10.1088/1475-7516/2024/06/029
LA  - English
N1  - WOS:001246744300003
ID  - Bhattacharya_etal2024
ER  -