TY - JOUR
T1 - Dark matter signals and cosmic ray anomalies in an extended seesaw model
AU - Sung Cheon, H.
AU - Kang, Sin Kyu
AU - Kim, C. S.
PY - 2011/1/10
Y1 - 2011/1/10
N2 - An extended seesaw model proposed to achieve low scale leptogenesis can resolve the excess positron and electron fluxes observed from PAMELA, ATIC and/or Fermi-LAT, and simultaneously accommodate some of recent experimental results for dark matter (DM) signals. In this approach, in addition to SU(2)L doublet and the (light) singlet Higgs fields, an extra vector-like singlet neutrino and a singlet scalar field, which are coexisting two-particle dark matter candidates, are responsible for the origin of the excess positron and electron fluxes to resolve the PAMELA, ATIC and/or Fermi-LAT anomalies, as well as for the DM signals observed from direct searches in low mass scale.
AB - An extended seesaw model proposed to achieve low scale leptogenesis can resolve the excess positron and electron fluxes observed from PAMELA, ATIC and/or Fermi-LAT, and simultaneously accommodate some of recent experimental results for dark matter (DM) signals. In this approach, in addition to SU(2)L doublet and the (light) singlet Higgs fields, an extra vector-like singlet neutrino and a singlet scalar field, which are coexisting two-particle dark matter candidates, are responsible for the origin of the excess positron and electron fluxes to resolve the PAMELA, ATIC and/or Fermi-LAT anomalies, as well as for the DM signals observed from direct searches in low mass scale.
KW - Cosmic ray anomalies
KW - Dark matter
KW - Extended seesaw model
KW - Leptogenesis
UR - http://www.scopus.com/inward/record.url?scp=78650307332&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2010.11.028
DO - 10.1016/j.physletb.2010.11.028
M3 - Article
AN - SCOPUS:78650307332
SN - 0370-2693
VL - 695
SP - 242
EP - 246
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-4
ER -