TY - JOUR
T1 - Asymmetric dark matter, baryon asymmetry and lepton number violation
AU - Frandsen, Mads T.
AU - Hagedorn, Claudia
AU - Huang, Wei Chih
AU - Molinaro, Emiliano
AU - Päs, Heinrich
PY - 2018
Y1 - 2018
N2 - We study the effect of lepton number violation (LNV) on baryon asymmetry, generated in the early Universe, in the presence of a dark sector with a global symmetry U(1)X, featuring asymmetric dark matter (ADM). We show that in general LNV, observable at the LHC or in neutrinoless double beta decay experiments, cannot wash out a baryon asymmetry generated at higher scales, unlike in scenarios without such dark sector. An observation of LNV at the TeV scale may thus support ADM scenarios. Considering several models with different types of dark matter (DM), we find that the DM mass is of the order of a few GeV or below in our scenario.
AB - We study the effect of lepton number violation (LNV) on baryon asymmetry, generated in the early Universe, in the presence of a dark sector with a global symmetry U(1)X, featuring asymmetric dark matter (ADM). We show that in general LNV, observable at the LHC or in neutrinoless double beta decay experiments, cannot wash out a baryon asymmetry generated at higher scales, unlike in scenarios without such dark sector. An observation of LNV at the TeV scale may thus support ADM scenarios. Considering several models with different types of dark matter (DM), we find that the DM mass is of the order of a few GeV or below in our scenario.
U2 - 10.1016/j.physletb.2018.05.043
DO - 10.1016/j.physletb.2018.05.043
M3 - Journal article
AN - SCOPUS:85048501706
VL - 782
SP - 387
EP - 394
JO - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology
JF - Physics Letters B: Particle Physics, Nuclear Physics and Cosmology
SN - 0370-2693
ER -