According to the Hypothesis of primary particles , they exist in their own flat spacetime, in their basic, dynamic state, i.e. while moving at speeds , possessing energy
where represents the attributed mass of the primary particle. Further, when these particles slow down to lesser speeds , their overall energy and momentum increase in accordance with the following relations:
Thus, the possibility exists that about 13.65 billion years ago, during the deceleration of some of these particles caused by their mutual collisions to a speed slightly higher than the speed of light, enormous energy and momentum it possessed, as observed in the above relations, were tunnelled through the Big Bang into our Universe, creating our own energy and mass. We consider the speed of light in a vacuum c to be the border speed, so the photons in our Universe, by the Special Theory of Relativity, cannot achieve this border speed , but a speed slightly lower than it instead, i.e. the speed that is by the “quantum of speed” lower than the border speed c. In addition to the “quantum of speed”, in this paper, we will also utilise the data on the mass of our Universe . This mass includes every type of mass (baryonic and dark mass) and the mass associated with all types of energy (photons, dark energy, etc.).It is important to note that this would be the mass of the Universe from the perspective of the observer in our position in the Universe, which would differ for the observers depending on their relative movement in relation to us, so e.g. for an observer travelling with a photon that would represent the Planck mass. For the Planck mass, we will use .
As we can see, the creation of other universes could occur with a certain primary particle slowing down very close to some other border speed k, which would determine these universes in accordance with different physical constants, and therefore different properties and incomprehensible to us.
2. The Energy Possessed by the Primary Particle in Its Basic State While Moving at the Speed up
2.1. Derivation of the Value of the mass Attributed to the Primary Particle from Its Energy
Due to the increase in the energy of the primary particles during their deceleration, it can be stated that, in contrast to the kinetic energy, they increase their homeokinetic energy H with their speed decreasing . Hence, close to the border speed c, . At this moment, the total energy of the primary particle Et is tunnelled into the total energy of our created Universe EU, i.e.
Considering that according to :
and similar derived from (2) and (5), we can note that:
during which , i.e.
where represents the “speed quantum of the primary particle”.
Further, from (6) and (8) we see that:
and logically assuming that , we can conclude that the attributed mass of the primary particle is equal to the Planck mass
Similarly, using (9) we can determine “speed quantum of the primary particle” from
2.2. Deriving the Value of the Mass Attributed to the Primary Particle from Its Momentum
From (3), we can now express the mass of the primary particle as:
In accordance with the law of momentum conservation, the primary particle transmitted its entire momentum to our Universe during the Big Bang, i.e.
where, according to  , we have:
Thus, this way we also concluded that the attributed mass of the primary particle is equal to the Planck mass.
Therefore, the primary particle energy according to (1) equals:
With the primary particle energy determined in this manner, our hypothesis gains a more complete meaning.
In this paper, we have determined the attributed mass of the primary particle that is the Planck mass, which has now acquired this new meaning. This mass was determined in two ways, by utilising the expressions for energy and for the momentum of the primary particle. Certainly, the energy of these particles in their basic state, i.e. while moving at their maximum speeds , is now known. We based our considerations on the Hypothesis of primary particles and , which, in addition to the well-known ones, also provided new connections between fundamental physical constants.
The cosmic microwave background is evidence that our Universe has expanded from a very hot, dense state, which is in line with our hypothesis.
4. The Need for Development of a Primary Particle Hypothesis and Their Experimental Proof
In addition to the previous dynamic properties of these particles, we have now determined their energy, as well. Therefore, we believe that further study of hypothetical primary particles could make an important scientific shift in physics, as well as in our philosophical view of the world.
Given the described properties of primary particles, we expect their indirect experimental evidence to be possible through a successful explanation of the Big Bang, via further scientific work on the Hypothesis of primary particles.
 Mercier, C. (2019) Calculation of the Mass of the Universe, the Radius of the Universe, the Age of the Universe and the Quantum of Speed. Journal of Modern Physics, 10, 980-1001.