Posts Tagged Neutron

How does the synchronous interaction, or strong nuclear force, attract nucleons and hold the nucleus together?

The Cordus theory of the synchronous interaction is key to the concept of the nuclear polymer.

How does the strong force work?

Conventionally the strong nuclear force is proposed to arise by the exchange of gluons of various colour. The theory for this is quantum chromodynamics (QCD). This force is then proposed to be much stronger in attraction than the electrostatic repulsion of protons of like charge, hence ‘strong’. Rather strangely, the theory requires the force to change and become repulsive at close range.  This is to prevent it from collapsing the protons into a singularity (single point). Quite how this change operates is not explained, and the theory as a whole also cannot explain even the simplest atomic nucleus, let alone any of the features of the the table of nuclides. So there is a large gap between the colour force of QCD and any realistic explanation of atomic structure. QCD, gluons, and the strong attraction-repulsion force have no proven external validity: the concepts don’t extend to explain anything else.

It is time to attempt a different approach. Remember, it is necessary to explain not only how the quarks are bonded, but also how the protons and neutrons are bonded, and onward to explain why any one nuclide is stable/unstable/non-existent.  That means seeking explanations to the bigger picture, rather than creating a narrowly-focussed mathematical model of one tiny part of the problem.

What holds protons and neutrons together in the nucleus?

Here is our progress so far. First, note that conventionally the strong nuclear force overcomes the electrostatic repulsion of protons. In contrast the Cordus theory proposes that the protons and neutrons are locked together by  synchronisation of their emitted electrostatic forces. These forces are proposed to be discrete.  This is a radically different mechanism that has nothing to do with the electrostatic force.

‘The Cordus theory proposes that the strong force arises from the synchronisation of discrete forces between the reactive ends of different particules. The emission directions represent the particule’s directional engagement with the external environment, and so two particules that co-locate one of each of their reactive ends need to share this access, and this is proposed as the basis for the synchronicity requirement. This causes the emission of the particules’ discrete forces to be interlocked. The discrete forces cause the reactive ends to be pulled into (or repelled from) co-location and held there. Hence the strong nature of the forces, its apparent attractive-repulsive nature, and its short range.’


The Cordus equivalent of the strong force is a synchronous interaction between particles,  Figure: CM-06-01-01

The Cordus equivalent of the strong force is a synchronous interaction between particles,
Figure: CM-06-01-01

 What is the synchronous interaction?

Second, note that the conventional idea is that the strong force is one of a set that also includes the electrostatic, magnetic, and gravitational forces (EMG). In contrast the Cordus theory proposes that the  electrostatic repulsion force is inoperable inside the atomic nucleus. So there is no need for a ‘strong’ force to ‘overcome’ the  proton  electrostatic repulsion. You can either have the EMG forces or the synchronous interaction, not both. The factor that determines which operates is whether the assembly of matter is discoherent or coherent.

‘Unexpectedly, the Cordus theory predicts that this synchronous force only applies to particules in coherent assembly. In such situations the synchronicity of emission means also that the assembled particules must energise at the same frequency (or a suitable harmonic), and either in or out of phase. Thus the synchronous interaction is predicted to be limited to particules in coherent assembly relationships, with the electro-magneto-gravitational forces being the corresponding interaction for discoherent assemblies of matter.’

This is a radical departure from the orthodox perspective, which otherwise sees the strong and electrostatic forces as operating concurrently. The Cordus theory predicts that the interaction between neighbouring protons in the nucleus is entirely synchronous (strong force) and that there is no electrostatic repulsion (at least for small nuclei).

What determines nuclide stability?

Third, the Cordus theory proposes, by logical extension, that the synchronous interaction makes two distinct types of bond, differentiated by same vs. opposed phase (cis- and transphasic) of the reactive ends. This concept does not exist in conventional theories of the strong force which are based on 0D points.


Figure CM-06-03-01B

Figure CM-06-03-01B


What is the nuclear polymer structure of the atomic nucleus?

By logical progression, this concept lead to the conclusion that protons and neutrons are bound together in a chain, or as we call it, a nuclear polymer. This proves to be a powerful concept, because with it we are able to explain nuclide structures. The following diagram shows how the principle is applied to some example nuclides.


Figure CM-06-03-02-01-4

Figure CM-06-03-02-01-4


More information maybe found in the following references. They are best read in the order given, rather than the order published.

Dirk Pons,

19 July 2015, Christchurch, New Zealand


[1] Pons, D. J., Pons, A. D., and Pons, A. J., Synchronous interlocking of discrete forces: Strong force reconceptualised in a NLHV solution  Applied Physics Research, 2013. 5(5): p. 107-126. DOI:

[2] Pons, D. J., Pons, A. D., and Pons, A. J., Nuclear polymer explains the stability, instability, and non-existence of nuclides. Physics Research International 2015. 2015(Article ID 651361): p. 1-19. DOI:

[3] Pons, D. J., Pons, A. D., and Pons, A. J., Explanation of the Table of Nuclides:  Qualitative nuclear mechanics from a NLHV design. Applied Physics Research 2013. 5(6): p. 145-174. DOI:



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Explaining the Nuclides

HI! He Lithely Bellowed Boringly, Car Nicely On Fire Nearby.

The first ten elements take us from Hydrogen to Neon. However they have many nuclides, about 140. (Nuclides, or isotopes, are nucleus variants with different numbers of neutrons).

There are many unsolved problems in this area. How are the protons and neutrons arranged in the nucleus? What makes some combinations of protons and neutrons stable, and others not? Why do the series start and stop where they do? How does the strong force bind protons and neutrons in nuclear structures? How do point particles make up a nucleus with volume?

All this continues to be a mystery, a century after Rutherford’s discovery of the nucleus. Current theories for this area, e.g. magic numbers, QCD, and the SEMF, don’t have answers, despite having working at the problem for half a century or more.

The whole thing needs a total re-think at the fundamental level, and we propose starting with what it means to be a ‘particle’.  Quantum mechanics (QM) is built on the assumption that particles are zero-dimensional points. What if quantum mechanics was wrong? What are the alternatives?

One option is to assume that particles really do have internal structures. This is called a hidden-variable solution.  However trying to find a workable version has been an insurmountable difficulty, and most people in physics have given up trying. We have had some success in this, in the form of the Cordus theory. This is a non-local hidden-variable (NLHV) design. Even so, explaining the nuclides from first principles, whether with QM or a NLHV design, is a formidable task that has not been solved.

Consequently, we plan to approach it in stages. Here’s where we have got to:

STAGE A: Create a theory for how the strong force works. [DONE] In the Cordus theory this corresponds to a synchronous interaction. As a bonus, we also get force unification. Read the journal paper here

STAGE B: Elucidate how the synchronous interaction applies to proton and neutrons. [DONE] Surprisingly, it turns out that there are two versions, not just one, of the this force. We worked out how this would affect the bonding of protons and neutrons. This gave us an explanation  of what the neutron is doing in the nucleus. As a bonus, we also got the nuclear structures of the hydrogen nuclides. And as a further bonus, we were able to explain why both 1H0 and 1H1 are stable. So that is ‘Hi!’ sorted. Read the preprint here

STAGE C: Discover how larger collections of protons and neutrons join together. [DONE] Unexpectedly, the theory suggests the protons and neutrons form a nuclear polymer. Generally this is a closed loop. We find the design capable of accepting three-nucleon assemblies, in the form of Bridge neutrons. As a bonus, we find the nuclides of Helium. So that is Hi! ‘He..’ done.   Read the preprint here

That’s all the progress to report for now.

STAGE D: Predict the nuclide structure. Interpret the trends in the table of nuclides. [WORK IN PROGRESS] H and He are easy nuclides. After this it get tougher. We are working on it and hope to report back shortly.

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