I How to create an elementary particle?

fredreload
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Well I know the annihilation of quarks and anti-quarks, but is it possible to create these two quarks in reverse? Like when you shove electromagnetic radiation into a compact form you get quarks and anti-quarks in return? Sure most of them are created after the Big Bang, but it is possible for them to run out if we are only in concern of the annihilation of particles? Sure it is not an easy task, create quarks to get neutrons and protons to get an element, but it is something that eventually needs to be done. If someone has any news about this let me know, I searched the web and cannot seem to find anything. I feel like this is needed to complete the renewable cycle
 
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fredreload said:
Well I know the annihilation of quarks and anti-quarks, but is it possible to create these two quarks in reverse? Like when you shove electromagnetic radiation into a compact form you get quarks and anti-quarks in return?

Sure. If you crash two or more particles together hard enough you're bound to get loads of fundamental particles pop out. This happens all the time at various particle colliders around the world.

fredreload said:
Sure it is not an easy task, create quarks to get neutrons and protons to get an element, but it is something that eventually needs to be done.

Probably not. It's MUCH easier to create new elements out of fusion or fission (especially fusion thanks to the overwhelming abundance of hydrogen in the universe) than it is to create them "from scratch" by trying to create protons and neutrons and then trying to put those together.
 
Drakkith said:
Sure. If you crash two or more particles together hard enough you're bound to get loads of fundamental particles pop out. This happens all the time at various particle colliders around the world.
Probably not. It's MUCH easier to create new elements out of fusion or fission (especially fusion thanks to the overwhelming abundance of hydrogen in the universe) than it is to create them "from scratch" by trying to create protons and neutrons and then trying to put those together.
Well, but we'll have to mine hydrogen from other planets?
 
fredreload said:
Well, but we'll have to mine hydrogen from other planets?

Yep. But that's probably a pretty simple affair. Just hang some really long hoses down into a gas giant or something. :wink:
 
Right, I was thinking what would happen if someone ever creates a portal at the bottom of our ocean lol. I'll leave it at this :P
 
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Toponium is a hadron which is the bound state of a valance top quark and a valance antitop quark. Oversimplified presentations often state that top quarks don't form hadrons, because they decay to bottom quarks extremely rapidly after they are created, leaving no time to form a hadron. And, the vast majority of the time, this is true. But, the lifetime of a top quark is only an average lifetime. Sometimes it decays faster and sometimes it decays slower. In the highly improbable case that...
I'm following this paper by Kitaev on SL(2,R) representations and I'm having a problem in the normalization of the continuous eigenfunctions (eqs. (67)-(70)), which satisfy \langle f_s | f_{s'} \rangle = \int_{0}^{1} \frac{2}{(1-u)^2} f_s(u)^* f_{s'}(u) \, du. \tag{67} The singular contribution of the integral arises at the endpoint u=1 of the integral, and in the limit u \to 1, the function f_s(u) takes on the form f_s(u) \approx a_s (1-u)^{1/2 + i s} + a_s^* (1-u)^{1/2 - i s}. \tag{70}...

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