TY - JOUR
T1 - Flipped dark matter
AU - Ellis, John
AU - Hagelin, John S.
AU - Kelley, Stephen
AU - Nanopoulos, D. V.
AU - Olive, Keith A.
PY - 1988/8/4
Y1 - 1988/8/4
N2 - We study candidates for dark matter in a minimal flipped SU(5)×U(1) supersymmetric GUT. Since the model has no R-parity, spin- 1 2 supersymmetric partners of conventional particles mix with other neutral fermions including neutrinos, and can decay into them. The lightest particle which is predominantly a gaugino/higgsino mixture decays with a lifetime τχ∼1-109 s. The model contains a scalar "flaton" field whose coherent oscillations decay before cosmological nucleosynthesis, and whose pseudoscalar partner contributes negligibly to Ω if it is light enough to survive to the present epoch. The fermionic "flatino" partner of the flaton has a lifetime τΦ∼1028-1034 yr and is a viable candidate for metastable dark matter with Ω≲1.
AB - We study candidates for dark matter in a minimal flipped SU(5)×U(1) supersymmetric GUT. Since the model has no R-parity, spin- 1 2 supersymmetric partners of conventional particles mix with other neutral fermions including neutrinos, and can decay into them. The lightest particle which is predominantly a gaugino/higgsino mixture decays with a lifetime τχ∼1-109 s. The model contains a scalar "flaton" field whose coherent oscillations decay before cosmological nucleosynthesis, and whose pseudoscalar partner contributes negligibly to Ω if it is light enough to survive to the present epoch. The fermionic "flatino" partner of the flaton has a lifetime τΦ∼1028-1034 yr and is a viable candidate for metastable dark matter with Ω≲1.
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U2 - 10.1016/0370-2693(88)90947-1
DO - 10.1016/0370-2693(88)90947-1
M3 - Article
AN - SCOPUS:45549122110
VL - 209
SP - 283
EP - 288
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 - 2-3
ER -