Does the collision of a neutron and anti-neutron produce energy? For education, the first observation of an antineutron in an antiproton beam at Berkley in 1958 The beam of antiprotons is coming from the top One antiproton does a charge exchange reaction with a proton at rest in the chamber, leading to a pair of neutron antineutron, the antineutron taking most of the momentum of the antiproton
Is there a strong evidence of antineutron existance? An antineutron that finds a neutron will annihilate first to a "starburst" of about five pions; the neutral pions then decay into photons, while the charged pions most decay to muons and muon neutrinos Here's a review of low-energy nucleon-antinucleon interactions, which I haven't yet read
nuclear physics - Anti-neutrons, anti-quarks, isospin: What is observed . . . Third a neutron-antineutron collision - after all what we have seen in this kind of collisions with protons-antiprotons Proton antiprotons annihilate into pions mainly and this has been documented measured so well that it only displays ignorance to question it please note the the pi letters are put in after the photograph of the reaction was
Neutron to antiproton decay - Physics Stack Exchange It would violate the law of conservation of baryons Baryons (half-integer-spin particles, i e s=1 2, 3 2, 5 2, interacting through the strong force) cannot be created at will, but must conserve the total baryonic number: protons and neutrons both have $+1$ baryon number, while their antiparticles, antiproton and antineutron, have baryon number $-1$ each
How to create antineutrons? - Physics Stack Exchange Creating a beam of antiprotons allows to create antineutrons by charge exchange How does this exchange work? The question pops up after the question "Is there a strong evidence of antineutron exis
Neutron-Antineutron Annihilation - Physics Stack Exchange The incoming antiproton has very small momentum and it loses a lot of it from ionization on the hydrogen molecules of the bubble chamber Annihilation means loss of identifying quantum numbers There are no protons or antiprotons in the product neutron antineutron is the same, more difficult experiment $\endgroup$ –
particle physics - Neutron antineutron reaction documentation - Physics . . . The antineutron meets a proton and annihilates into pions It is interesting to note that the incoming kinetic energy is too low to allow the energies appearing in the five pions The energy comes from the masses of the target proton and the antineutron Since then antineutron beams have been created and experiments with antineutrons performed
What happens if we put together a proton and an antineutron? This makes me wonder how an atomic nucleus made of a proton and a "minus one neutron" would look like, and the closest thing to a "minus one neutron" I can imagine is an antineutron What happens if we combine a proton and an antineutron? Are things like this even possible? If such a thing is an atomic nucleus, can we add an electron and get an
On the annihilation of a neutron with an antineutron Stack Exchange Network Stack Exchange network consists of 183 Q A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers