Baryon Conservation and the Antimatter Mystery

Everything is made of matter. Matter is made of atoms, and atoms are made of smaller particles. Baryons are one of these subatomic particles, and the most common are protons and neutrons. They’re important because they make up most of the mass in the observable universe.1

Baryon Conservation

The conservation of baryons means that the total number of baryons in any given nuclear reaction remains the same. In other words, the initial number of baryons involved in a reaction equals the number of baryons remaining afterward. Consider the decay of a free neutron:

n0 → p+ + e- + υe

The neutron (n), with a baryon number of 1, decays into a proton (p), with a baryon number of 1, plus an electron (e), with a baryon number of 0, and an electron antineutrino (υ−), with a baryon number of 0. Thus, the baryon number is conserved. Now consider the hypothesized decay of a proton:

p+ → e+ + π0

A proton (p), with baryon number 1, decays into a positron (e+), with baryon number 0, and a neutral pi-meson (π), with baryon number 0. This decay is predicted by several popular secular models2 but has never been observed in nature because it violates baryon conservation, i.e., 1 ≠ 0.

The current lower limit for a proton’s half-life is 1.6 x 1034 years,3,4 which is 24 orders of magnitude greater than the secular age of the universe. So, the total number of baryons in the universe remains constant according to our most recent observations in spite of many secular hypotheses to the contrary.

The Antimatter Mystery

Why does baryon conservation pose such a problem for secular science? Because it does not support the presuppositions of the Big Bang model. Most Big Bang hypotheses claim the universe began with some type of quantum fluctuation that expanded as a ball of pure energy and eventually condensed into extremely high-energy electromagnetic waves. These waves then produced equal amounts of baryons and antibaryons through a process called pair production:

γ + γ → p+ + p

This process is fully reversible since the baryon number on both sides of the reaction is 0. When the proton and antiproton come into contact, they will annihilate into two high-energy photons. This means one of two things had to have happened for our observable universe to exist according to secular science. Either the matter and antimatter somehow congregated in different areas of the universe, or there is an asymmetry in the interaction of matter and antimatter that leaves a small residual amount of matter but no antimatter after the annihilation process.

When matter and antimatter annihilate, characteristic back-to-back high-energy gamma rays are produced. These rays have not been observed in any significant amount from galaxies or superclusters interacting with the normal matter in space. So, while antimatter may be produced in very small amounts by certain extreme phenomena in the universe, there is no observational evidence for large groupings of antimatter. To date, no experimental evidence exists that annihilation reactions produce a surplus of matter along with the gamma radiation.

The universe didn’t explode into existence but was instead designed by a Creator to be inhabited. Tweet: The universe didn’t explode into existence but was instead designed by a Creator to be inhabited.

Baryon Conservation and the Antimatter Mystery:


#Science #Bible

So, where is the antimatter that the Big Bang hypotheses predict must exist in our universe? Maybe the universe didn’t explode into existence but was instead designed by a Creator to be inhabited,5 as the first few chapters of Genesis indicate.


  1. Lisle, J. and V. Cupps. 2016. Subatomic Particles, Part 2: Baryons, the Substance of the Cosmos. Acts & Facts. 45 (8): 10-13.
  2. Nishino, H. et al. 2009. Search for Proton Decay via p → e+ π0 and p → μ+ π0 in a Large Water Cherenkov Detector. Physical Review Letters. 102 (14): 141801.
  3. Bajc, B. et al. 2016. Threshold corrections to dimension-six proton decay operators in non-minimal SUSY SU(5) GUTs. Nuclear Physics B. 910: 1-22.
  4. Abe, K. et al. 2017. Search for proton decay via p → e+ π0 and p → μ+ π0 in 0.31 megaton • years exposure of the Super-Kamiokande water Cherenkov detector. Physical Review D. 95 (012004): 1-10.
  5. Isaiah 45:18.

* Dr. Cupps is Research Associate at the Institute for Creation Research and earned his Ph.D. in nuclear physics at Indiana University-Bloomington. He spent time at the Los Alamos National Laboratory before taking a position as Radiation Physicist at Fermi National Accelerator Laboratory, where he directed a radiochemical analysis laboratory from 1988 to 2011. He is a published researcher with 73 publications.

Cite this article: Vernon R. Cupps, Ph.D. 2018. Baryon Conservation and the Antimatter Mystery. Acts & Facts. 47 (11).

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