caa a22 4500 46580960X CHVBK 20180323112112.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF02782738 doi (NATIONALLICENCE)springer-10.1007/BF02782738 Mac Gregor M. Lawrence Livermore National Laboratory, 94550, Livermore, CA aut An elementary particle constituent-quark model [Elektronische Daten] [M. Mac Gregor] Summary: A comparison of mesonmasses with baryonexcitation energies reveals a common mass-band structure, in which particles with a variety of quantum numbers are grouped together. These quantized mass values seemingly mandate a constituent-quark (CQ) viewpoint. By studying the meson and baryonyrast states, we can deduce the masses and spin values of some of the constituent quarks. A comprehensive CQ model is presented that reproduces the observed spectrum of hadrons and leptons. These CQ quarks include the standard u, d, s, c, b set of quarks as a subset. The quark generation process, which features characteristic mass triplings, is a key ingredient of this CQ model. All of the constituent-quark masses are formed from a set of three basic masses, two spinning and one spinless, which are directly related to the masses of the electron, muon, and pion. The mass quantum X=420 MeV is a dominant excitation state that dictates meson, baryon, and lepton mass values. The quantum X occurs in bothS=0 andS=1 spin configurations, and it serves as a <<window>> for transformations between orbital and spin angular momenta. The fully relativistic spinning sphere, with its distinctive 3/2 mass increase, provides an isoergic link between spinless and spinning excitation quanta. The fine-structure constant α and the charge-splitting quantum ε=9m e provide links between quarks and leptons. Particle lifetimes and decay modes reflect constituent-quark substructures. Società Italiana di Fisica, 1990 Hadron mass formulas nationallicence Il Nuovo Cimento A (1965-1970) Società Italiana di Fisica 103/7(1990-07-01), 983-1052 103:7<983 1990 103 40763 https://doi.org/10.1007/BF02782738 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02782738 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Mac Gregor M. Lawrence Livermore National Laboratory, 94550, Livermore, CA aut NATIONALLICENCE 773 0- Il Nuovo Cimento A (1965-1970) Società Italiana di Fisica 103/7(1990-07-01), 983-1052 103:7<983 1990 103 40763 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer