Down, strange, and bottom quarks are the combination particles composed of the shell fermion of neutrinos and the inside boson of a pair of neutrino and gravino. When down quark collides, the most external electron neutrino is peeled off and it is turned into strange quark. When the strange quark collides, the most external muon neutrino is peeled off and it is turned into bottom quark. When the bottom quark collides, the most external tau neutrino is peeled off, and a pair of neutrino and gravino boson pops out. All masses can be calculated from the measured masses of top quark, bottom quark, proton, Z boson and H boson. As the result of applying Q-theory, the mass of up, charm, down, strange quark was calculated as 2.254 MeV, 1277.1 MeV, 4.767 MeV, and 95.17 MeV. From these values, the cosmological constant was calculated as 98.4% of 1.1056E-52/m2.