We give an estimation of the masses of light dark matter particle and dark energy quasiparticle which can be extracted from the astrophysical data about the contributions of baryon ( \Omega _ { B } ) , dark matter ( \Omega _ { DM } ) , and dark energy ( \Omega _ { X } ) densities to the total matter-energy density budget in our universe . We use the quantum cosmological model in which dark energy is a condensate of quantum oscillations of primordial scalar field . The dark energy quasiparticle with the mass \approx 15 GeV is consistent with the 7-year WMAP and other data on \Omega _ { B } and \Omega _ { X } . The quasiparticles can decay with violation of CP-invariance into baryons , leptons , and dark matter . The WIMP mass \approx 5 GeV corresponds to observed values of \Omega _ { B } and \Omega _ { DM } . Such a mass agrees with the observations of CoGeNT , DAMA , and CDMS . Quasiparticles of dark energy can be registered as a constant background of radiation with the frequency \approx 3.64 \times 10 ^ { 24 } s ^ { -1 } . Dark matter particles must exhibit themselves in the form of signals with the frequency \approx 1.21 \times 10 ^ { 24 } s ^ { -1 } of radiation from galaxy clusters where the intensive gravitational fields produced by dark matter exist .