TY - JOUR
T1 - A new dark matter candidate in the minimal extension of the supersymmetric standard model
AU - Flores, Ricardo
AU - Olive, Keith A.
AU - Thomas, David
N1 - Funding Information:
We would like to thank M. Srednicki for importantc ommunicationsT.h is work was supportedin part by DOE grant DE-83ER-AC02-40105a,n d by K.A.O.s PresidentiaYl oung InvestigatoAr ward.
PY - 1990/8/16
Y1 - 1990/8/16
N2 - We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.
AB - We study the cosmology of the neutral supersymmetric fermion sector in the simplest extension of the minimal supersymmetric standard model. We find that in a substantial portion of the allowed parameter space of the model, a new light fermion emerges. For this state we calculate annihilation cross-sections and determine its cosmological abundance. We find that in much of the cosmologically allowed region of parameter space its relic density could be significant enough to solve the dark matter problem.
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U2 - 10.1016/0370-2693(90)90682-V
DO - 10.1016/0370-2693(90)90682-V
M3 - Article
AN - SCOPUS:0542396432
VL - 245
SP - 509
EP - 514
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -