# What is the theory of antimatter?

## What is the theory of antimatter?

Antimatter is a material composed of so-called antiparticles. It is believed that every particle we know of has an antimatter companion that is virtually identical to itself, but with the opposite charge. When a particle and its antiparticle meet, they annihilate each other – disappearing in a burst of light.

## Does antimatter violate conservation of energy?

Does antimatter-matter annihilation violate the conservation of energy? No. The annihilation always produces new particles with the same total energy and momentum (so momentum is also conserved).

What happens if matter and antimatter collide?

Antimatter should have annihilated all of the matter in the universe after the big bang. According to theory, the big bang should have created matter and antimatter in equal amounts. When matter and antimatter meet, they annihilate, leaving nothing but energy behind.

How does matter react to antimatter?

Mixing antimatter and matter usually has predictably violent consequences – the two annihilate one another in a fierce burst of energy. Charged antimatter particles share the same mass as their normal-matter counterparts but bear the opposite charge.

### How do matter and antimatter differ?

Antimatter is identical to normal matter in almost every way. The only difference is electric charge, which is opposite for the two forms of matter. For every billion pairs of matter and antimatter particles, there was one extra particle of matter.

### Is antimatter the opposite of matter?

Antimatter is the same as ordinary matter except that it has the opposite electric charge. A positron is a particle with the same mass as an electron but a positive charge. Particles with no electric charge, like neutrons, are often their own antimatter partners.

Does antimatter break the law of conservation of matter?

Matter with mass has an energy equivalent (E = mc^2). It is believed that the total sum of mass and energy taking into account the energy equivalent of rest mass is constant. The conservation of matter is correct, because antimatter doesn’t destroy matter, it turns it into energy.

Why is there matter and not antimatter?

So why is there far more matter than antimatter in the universe? The Big Bang should have created equal amounts of matter and antimatter in the early universe. Matter and antimatter particles are always produced as a pair and, if they come in contact, annihilate one another, leaving behind pure energy.

#### Do matter and antimatter repel each other?

As Villata explains, the current formulation of general relativity predicts that matter and antimatter are both self-attractive, yet matter and antimatter mutually repel each other.

#### Does antimatter destroy matter?

What makes antimatter unique is that when antimatter comes in contact with its regular matter counterpart, they mutually destroy each other and all of their mass is converted to energy. This matter-antimatter mutual annihilation has been observed many times and is a well-established principle.

Why does antimatter and matter destroy each other?

Of course there are many other changes. But this difference of charges creates the attraction of the particles. Because difference charges attract. Thats why matter and antimatter annihilate each other when they meet.

Can antimatter destroy the world?

Will the mutual annihilation and conversion to pure energy destroy the world? No, say physicists. “It’s true that when matter and antimatter meet, they do annihilate in a big explosion and convert their mass to energy.

## Can antimatter be created out of energy?

As a result of the conservation of lepton and baryon numbers, antimatter (antiparticles) can be created out of energy, but only if a particle counterpart for every antiparticle is created as well. It will be demonstrated in the following sections.

## What are antimatter particles?

Antimatter particles share the same mass as their matter counterparts, but qualities such as electric charge are opposite. The positively charged positron, for example, is the antiparticle to the negatively charged electron.

What happens when Antimatter comes to rest?

Matter – Antimatter Annihilation When a positron (antimatter particle) comes to rest, it interacts with an electron, resulting in the annihilation of the both particles and the complete conversion of their rest mass to pure energy in the form of two oppositely directed 0.511 MeV photons.

What happened to antimatter in the early universe?

The Big Bang should have created equal amounts of matter and antimatter in the early universe. But today, everything we see from the smallest life forms on Earth to the largest stellar objects is made almost entirely of matter. Comparatively, there is not much antimatter to be found. Something must have happened to tip the balance.