Quark-lepton compositeness: A three-body scenario |
| |
Authors: | A N Mitra |
| |
Institution: | (1) Department of Physics, University of Delhi, 110 007 Delhi, India |
| |
Abstract: | The Harari-Shupe model of quarks and leptons is viewed, not as a gauge theory, but as a quantum-mechanical three-body problem
of the extreme relativistic type involving massless preons. Considerations based onS
3-symmetry in the available degrees of freedom (spin, isospin, space and hypercolour) are employed in conjunction with a spin-dependence
ansatz on the three-preon forces (Σ
a
=σ
μv
(1)
σ
λμ
(3)
) for an understanding of the three basic issues of (i) spin-1/2, (ii) generation structure and (iii) steeply rising mass
patterns of quark-lepton families. The Σ
a
-dynamics is compatible with the interpretation of colour as a manifestation ofS
3-symmetry, as envisaged in the original Harari-Shupe proposal, while the interpretation of the generation structure devolves
on the role of a certain quantum numberN which takes on three different classes of values (3n, 3n ± 1;n = 0, 1, 2, ...) according to theS
3-symmetry of thespatial wavefunction. |
| |
Keywords: | Quark-lepton composites Harari-Shupe model lepton-quark substructure preon interaction |
本文献已被 SpringerLink 等数据库收录! |
|