research in particle physics

abstract p3a-2005-001

Meson Shells [pdf]

Authors: Paolo Palazzi (e-mail)
Date: 2005-03-01
Subject: Particle Physics - Phenomenology
Comments: 14 pages, 9 figures

An indication that mesons are organized in shells, originally expressed with masses, is converted into number of constituents using a mass unit obtained from a mass multiplicity analysis. Mesonic and nuclear shells are found to be structurally similar, with the main meson shell progression extending up to shell 8 and correlated with the quark composition, and no states beyond the 8th shell. Meson states corresponding to the doubly-magic nuclei are identified up to the 3rd shell, and in this sequence no states are present for shells 4 and above, as is the case for nuclei. In this context, the quantization of the meson mass unit suggests that mesons are solid-phase FCC aggregates of spin 1/2 partons of charge 0, +1 and -1, arranged with anti-ferromagnetic spin coupling in a variety of charge configurations related to J^(PC) and the quark composition. This hypothesis is confirmed by the sharper shell pattern obtained with eta states. These results are used to formulate the ingredients of a shell model for mesons. In the emerging picture the number of parameters is considerably reduced in comparison with the standard model.


12.40.Yx Hadron mass models and calculations
12.90.+b Miscellaneous theoretical ideas and models of particles
14.40.-n Mesons

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Revision Record:
original v1: 2005-03-01 [pdf, 894 kb]
revised v2: 2005-03-13 [pdf, 646 kb]