An Alternating Quark Sequence Subnucleonic Structure of Stable Light Nuclei H-1 Through C-13

26 June 2020, Version 2
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The proposed structures of stable nuclei of H-1 through C-13 incorporate an alternating up and down quark sequence (AQS) of equally spaced quarks around regular geometries. AQS nuclear models represent quark positions in the same way molecular ball and stick models represent the relative positions of atoms. In AQS, the ball identifies the center of quark mass and the stick length is constant and equal to the most recent radius of the proton (0.8414 fm). AQS radius predictions use current quark masses, and predictions for H-1 to C-13 demonstrate 99.3% average agreement (SD 4%) and statistical correlation of ρ = 0.96, p<0.001, with accepted RMS charge radii. These results compare favorably to a close-packed nucleons model and a spherical nucleus model. A set of AQS parameters is included. Light nuclei tend to form ring structures corresponding to regular polyhedra, the smallest of which is the dodecagon structure of helium-4. Opposite quarks link nucleons to maintain a continuous sequence of alternating equally spaced quarks. Quark sequences may overlap so that protons overlap with neutrons. The more regular polyhedron structures of light nuclei yield better AQS radius predictions, whereas larger nuclei tend to be less regular and are thus less predictable (with the exception of the double overlapping octadecagon structure for the 36 quarks of C-12). The relative certainty in the accepted radius of helium-4, and its geometric relationship to the proton radius, allow a geometric solution to the “proton puzzle” yielding an AQS prediction for the proton radius of 0.8673±0.0014 fm.

Keywords

subnucleonic structure
alternating quark sequence
proton puzzle
nuclear structure
light nuclei
RMS charge radius
nuclear radius
model of the atomic nucleus
AQS
AQS parameters
quark geometry
Ball and Stick
Close packed
spherical nucleus
quark structure

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