Mathematical Field Notes

Archive for the ‘Quantum field theory’ Category


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How could you “detect” a new subatomic particle, given that it’s so small you can’t see it and (often) so short-lived that you’d miss it even if you didn’t blink?

Let’s suppose you have a process which you think might involve your tiny, short-lived new friends. Maybe you suspect that if you smash protons together, you might produce some particles… which decay into particles…. which decay into the particles you’re looking for… which then themselves decay almost immediately into something else, something that is more stable and easier to detect (something like a pair of photons). How could you check that you were right?

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Written by Jonny Evans

October 30, 2016 at 12:02 pm