Where’s All The Antimatter?

Article written: 17 Nov , 2014
Updated: 23 Dec , 2015
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One of the biggest mysteries in the Universe is the fact there there’s matter, and not antimatter. Where did it all go?

When we look around, everything we can see is made of matter. For every type of matter from electrons, protons and quarks there is a similar type of matter known as antimatter. So why aren’t there piles of antimatter rocks, cars and chocolate bars just lying around? Why does Scotty always have a little extra kicking around in his liquor cabinet? And where do I get mine?

The primary difference between matter and antimatter is that they have opposite electric charge. Which seems pretty mundane. The negatively charged electron has an antiparticle known as the positron, which has a positive electric charge.

Anti-protons have a negative charge, and are just flat out grumpy. We’ve been able to create these particles in the lab, and have even been able to create small amounts of anti-hydrogen consisting of a positron bound to an antiproton, when examined closely there’s were shown to have a goatee and a little colorful sash or dagger.

When we create particles in accelerators such as the Large Hadron Collider, we seem to get equal amounts of matter and antimatter. This suggests that when particles were formed soon after the big bang, there should have been equal amounts of matter and antimatter.

Particle Collider

Large Hadron Collider (CERN/LHC/GridPP)

But the universe we observe is only made of matter, and… here’s the best part… we have no idea why. Why didn’t the matter and antimatter completely annihilate each other? How come we ended up with a little more matter? This delightful mystery is known as baryon asymmetry.

We do have a few ideas, and by we, I mean some giant brained crackerjacks have come up with a few plausible options. The most popular is that somehow antimatter behaves a little differently than matter. This could cause an imbalance between matter and antimatter. After particles collided in the early universe, there would still be matter left over, hence the matter we observe.

Another idea is that the observable universe just happens to be in a region dominated by matter. Other parts of the multiverse could have observable universes dominated by antimatter. Baryon asymmetry is one of the big mysteries of modern cosmology.

Zero Gravity Flight

Stephen Hawking, weightless (courtesy Zero Gravity Corporation)

There is an even crazier idea. Antimatter might have anti-gravity. In other words, an atom of anti-hydrogen would fall up instead of down. If that is the case, then matter and antimatter would repel each other, and you might have matter universes and antimatter universes that are forever separate.There have been some initial experiments to test this idea, but so far there have been no conclusive results.

What do you think? Where’s all our antimatter and how do we track it down? I’d sure love to bring some home and show my friends…

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4 Responses

  1. The PWM-multiverse concept (above) supposes the total matter/antimatter SYMMETRY (their equal amounts) in the periodic chain Un-Universes in the PWM and this immediately allows to explain ~74% part of DE in the roughly freely expanding gravitationally NEUTRAL – matter/antimatter Hubble-“emulsion”. The rest is 26%~DM(22%)+OM(4%). All Un-Universes intrinsically contain identical SM-like particles and identical to our physics! If our Universe is W0, it is surrounded by two repulsive (visible for us) Antiuniverses U-1 and U1 and two (invisible for us) DM-universes U-2 and U2 , which are electrostatically, etc. isolated of U0-Universe, but still gravitationally attract our OM. So, the PWM-DM predicts two independent DM-components U2 and U-2 and this explains two totally different DM-DM collision observations (Bullet Cluster versus Abel 520 and A3827 Clusters), (see Gribov 2013, p. 61 above).

  2. Look, please in: Gribov, I. 2013. From the waveguided gravity to the periodic waveguided Multiverse as united solution of dark energy & dark matter & SUSY – mysteries. http://vixra.org/pdf/1304.0135v1.pdf
    Gribov, I., Trigger, S. 2014. Jeans instability and anti-screening in gravitational-antigravitational model of Universe. http://arxiv.org/pdf/1404.7122.pdf

  3. Dear Brian Koberlein, You writes: “There is an even crazier idea. Antimatter might have anti-gravity. In other words, an atom of anti-hydrogen would fall up instead of down”.
    I hope, this “crazy idea” is not so crazy – at least it has an excellent cosmological supports – this gives a routine explanation of the Dark Energy (DE) phenomena, driving the accelerating expansion of our Universe (NP 2011) and this will be very soon laboratorial- tested at CERN (the antihydrogen gravity test ~ end of 2015)!
    The underlying “crazy” physical theory (Gribov 2012, 2013, etc.) discloses the pure 4D-hyperspatial nature of ordinary matter (OM) and antimatter (AM) with the expanded CPT symmetry – with +/- gravity “charge” symmetry, predicting OM/AM anti-gravity(!), if we suppose existence of periodic, flat (co-adjacent) 3D-Universes = 3D-waveguides, realizing chain of physically EQUAL 3D-Universes Un. The periodicity seems to be very reasonable – this gives automatically emergent periodic chain of the adjacent, physically equal …/matter/antimatter/matter/antimatter/… 3D-Universes, in form of equal thin flat 3D-waveguides, periodically filling global Euclidean 4-hyperspace /see concept of the Periodic Waveguided Multiverse (PWM)/: Gribov, I. 2013. From the waveguided gravity to the periodic waveguided Multiverse as united solution of dark energy & dark matter & SUSY – mysteries. http://vixra.org/pdf/1304.0135v1.pdf

  4. Why the 3D-waveguided space geometry?
    Because 4D-photons acquire pure light-dynamical 3D-waveguided-quantized OM-“REST MASSES” with the exactly waveguided-emergent physical laws: Special Relativity & wave of De Broglie (QM) and emergent-waveguided Newtonian gravity in each 3D-Universe /3D-Antiuniverse and +/- gravity “charge” – antigravity between OM and AM, always living in two adjacent matter / antimatter Universes, with the co-emergent Equivalence/Anti-Equivalence Principle (which “half-formulation” became the empirical base for Einsteinian gravity theory, created years before sudden Diracian antimatter discovery).

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