/sci/ - Science & Math

[Anonymous No.14705257]

wtf is antimatter?

[Anonymous No.14705264]

it is the same as regular matter, except it explodes

[Anonymous No.14705271]

Look at an ocean.

Look at one going one way and another going the other (choppy seas)

Look at them collide, and anihilate each other.

Look at how this results in the water surrounding them is given pure energy

[Anonymous No.14705275]

Look at an ocean waves.

Look at one going one way and another going the other (choppy seas)

Look at them collide, and anihilate each other.

Look at how this results in the water surrounding them is given pure energy

[Anonymous No.14705276]

flipped em charge number, lepton number and baryon number

[Anonymous No.14705306]

>>14705257

Charged and spin-reversed normal matter. That's it. Oh, and it cancels out normal matter when they touch each other, resulting in a violent Annihilation explosion.

[Anonymous No.14705316]

>>14705306
like a mega-nuke?
where is that stuff and how de we keep it from touching?

[Anonymous No.14705345]

That's the 'x' your math teacher asked you to find so instead you solved for dark matter

[Anonymous No.14705357]

>>14705306
my feeble brain can understand the oppossitts cancel but why the explosion? Does this relate to the E=MC^2 where the energy expressed as particles is simple converted back to energy?

[Anonymous No.14705359]

>>14705257
fuck dirac

[Anonymous No.14705365]

>>14705316

Probably wiped itself out along with 90% of normal matter during the Baryogenesis about small fraction of a second after the Big Bang. Why antimatter appeared in a lower amount than matter to allow a universe with galaxies and stuff instead of empty is an unsolved problem in physics. It could be that the universe treats antimatter production differently or it could have been dumb luck. Regardless, if antimatter-dominated regions of space existed, the gamma rays produced in annihilation reactions along the boundary between matter and antimatter regions would be detectable.

Antiparticles are created everywhere in the universe where high-energy particle collisions take place. Particle accelerators can produce it. High-energy cosmic rays impacting Earth's atmosphere (or any other matter in the Solar System) produce minute quantities of antiparticles in the resulting particle jets, which are immediately annihilated by contact with nearby matter. They may similarly be produced in regions like the center of the Milky Way and other galaxies, where very energetic celestial events occur (principally the interaction of relativistic jets with the interstellar medium).

Antimatter may exist in relatively large amounts in far-away galaxies due to cosmic inflation in the primordial time of the universe. Antimatter galaxies, if they exist, are expected to have the same chemistry and absorption and emission spectra as normal-matter galaxies, and their astronomical objects would be observationally identical, making them difficult to distinguish.

[Anonymous No.14705376]

>>14705357

Yes. They transform into another particles, typically photons. For example in the case of electrons and positrons (antielectron) it results in becoming photons. The total energy and momentum of the initial pair are conserved in the process and distributed among a set of other particles in the final state which is why it is so explosive.

Antiparticles have exactly opposite additive quantum numbers from particles, so the sums of all quantum numbers of such an original pair are zero. Hence, any set of particles may be produced whose total quantum numbers are also zero as long as conservation of energy and conservation of momentum are obeyed.

If the annihilating particles are composite, such as mesons or baryons, then several different particles are typically produced in the final state.

[Anonymous No.14705403]

>>14705357

In Electron - Positron (antielectron) annihilation, the most probable is the creation of two or more photons, since the only other final-state Standard Model particles that electrons and positrons carry enough mass-energy to produce are neutrinos, which are approximately 10,000 times less likely to produce, and the creation of only one photon is forbidden by momentum conservation

Baryons such as protons and neutrons are more complex since they are really composite particles made by quarks bound together by gluons (carriers of the strong force). When a proton encounters an antiproton, one of its quarks, usually a constituent valence quark, may annihilate with an antiquark to produce a gluon, after which the gluon together with the remaining quarks, antiquarks, and gluons will undergo a complex process of rearrangement into a number of mesons, (mostly pions and kaons), which will share the total energy and momentum. The newly created mesons are unstable, and unless they encounter and interact with some other material, they will decay in a series of reactions that ultimately produce only photons, electrons, positrons, and neutrinos.

Since the later sorta-works like a fission, there have been proposal to use small amounts of antimatter to catalyse fission reactions even with subcritical mass.

[Anonymous No.14705410]

>>14705365
>90%
99.9999999%
1 in a billion was left over, the rest turned into photons
today's universe still has that same ratio between baryons and photons
that same

[Anonymous No.14705427]

>>14705365
>90%
99.9999999%
1 in a billion was left over, the rest turned into photons
today's universe still has that same ratio between baryons and photons

[Anonymous No.14705473]

>>14705257
Can it be that charge is preserved just by making may neutral atoms? Feels like theres some conservation laws besides charge conservation that might prevent that.
I mean, if theres some sea of photons i dont see why it need to just create positrons-electron pairs.

[Anonymous No.14705489]

>>14705257
the female equivalent of unclematter

Source: fresh prints

[Anonymous No.14705493]

>>14705427
>photons
Photons can multiply and split into more and more with lower energy. 1 gamma ray can decay into millions of IR photons

[Anonymous No.14705501]

Probably something too complex to be explained with atomic theory.

[Anonymous No.14705517]

https://www.youtube.com/watch?v=hYkaahzFWfo

[Anonymous No.14705518]

>>14705257
Something that doesn't matter

[Anonymous No.14705521]

>>14705257
It's antiantiantimatter

[Anonymous No.14706628]

Can someone write down what are the known conservation laws that limit possible particle creation? For instance we know that energy, momentum, charge and angular momentum are preserved. What else?
Because going by these i dont see why some sea of electrons-positrons and photons can't turn into neutral atoms. Is it lepton number conservation?

[Anonymous No.14708208]

>>14706628
>i dont see why some sea of electrons-positrons and photons can't turn into neutral atoms
Where are the quarks at?

[Anonymous No.14708238]

>>14705275
>Look at them collide, and anihilate each other
That's neither what waves do, nor what antimatter is.

[Anonymous No.14708253]

>>14706628
The number of baryons, the number of leptons and the number of each lepton flavour. Also electrical charge. At least in the standard model.

[Anonymous No.14708258]

The opposite of matter

[Anonymous No.14709124]

>>14708208
>Where are the quarks at?
Imbecile

[Anonymous No.14709143]

>>14705257
> be me, scientist

T = my theory
R = reality

> test

T /= R

> lightbulb!

A = antimatter

T + A = R

> antimatter is real!
> I’m still smart!

[Anonymous No.14709174]

>>14705257
Matter going backwards.

[Anonymous No.14709180]

You can't get 1 from 0 without getting -1.

[Anonymous No.14709185]

>>14709180
So, if there is 1 real thing, but you need your formula to balance out, you add 1 thing that is the opposite of real.

See
>> 14709143

[Anonymous No.14710697]

>>14709185
Nah, unlike some other quantum shit antimatter can interact with photons properly and is thus just as visible as matter.

[Anonymous No.14712160]

>>14709143
>confused antimatter with dark matter
thanks for letting us know your opinion is utterly useless

[Anonymous No.14712175]

>>14705489
this reply has received the 4Chan Official Seal of Quality

[Anonymous No.14712349]

>>14705493
No they can't

[Anonymous No.14712384]

>>14709143
accurately based only tranny will seethe

[Anonymous No.14712531]

>>14712349
yes they can