Europhys. Lett.
Volume 60, Number 2, October 2002
Page(s) 188 - 194
Section The physics of elementary particles and fields
Published online 01 October 2002
DOI: 10.1209/epl/i2002-00337-8

Europhys. Lett., 60 (2) , pp. 188-194 (2002)

Preon trinity -A schematic model of leptons, quarks and heavy vector bosons

J.-J. Dugne1, S. Fredriksson2 and J. Hansson2

1  Laboratoire de Physique Corpusculaire, Université Blaise Pascal Clermont-Ferrand II, FR-63177 Aubière, France
2  Department of Physics, Luleå University of Technology - SE-97187 Luleå, Sweden

(Received 19 June 2002; accepted 26 July 2002)

Quarks, leptons and heavy vector bosons are suggested to be composed of stable spin- (1/2) preons, existing in three flavours, combined according to simple rules. Straightforward consequences of an SU(3) preon-flavour symmetry are the conservation of three lepton numbers, oscillations and decays between some neutrinos, and the mixing of the d and s quarks, as well as of the vector fields W0 and B0. We find a relation between the Cabibbo and Weinberg mixing angles, and predict new (heavy) leptons, quarks and vector bosons, some of which might be observable at the Fermilab Tevatron and the future CERN LHC. A heavy neutrino might even be visible in existing data from the CERN LEP facility.

12.15.Ff - Quark and lepton masses and mixing.
12.60.Rc - Composite models.
14.60.St - Non-standard-model neutrinos, right-handed neutrinos, etc.

© EDP Sciences 2002