TY - JOUR
T1 - Cold and hot dark matter from a single nonthermal relic
AU - Brustein, Ram
AU - Hadad, Merav
PY - 1999/4/12
Y1 - 1999/4/12
N2 - The origin of dark matter in the Universe may be scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We show, for the first time, that a single species of such particles, depending on its mass and interactions, can be a source of both cold and hot dark matter simultaneously. Detection of such weakly interacting particles with masses below a fraction of an eV presents a new challenge for dark matter searches.
AB - The origin of dark matter in the Universe may be scalar particles produced by amplification of quantum fluctuations during a period of dilaton-driven inflation. We show, for the first time, that a single species of such particles, depending on its mass and interactions, can be a source of both cold and hot dark matter simultaneously. Detection of such weakly interacting particles with masses below a fraction of an eV presents a new challenge for dark matter searches.
UR - http://www.scopus.com/inward/record.url?scp=0007514224&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.82.3016
DO - 10.1103/PhysRevLett.82.3016
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AN - SCOPUS:0007514224
SN - 0031-9007
VL - 82
SP - 3016
EP - 3019
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
ER -