When a proton and an antiproton annihilate, the annihilation products are usuall

Question

When a proton and an antiproton annihilate, the annihilation products are usually pions. Suppose 8 pions are produced. Of each possible type ? , ? - and ? 0, how many pions are possible?

What is the maximum number of pions that can be produced in a proton

When a proton and an antiproton annihilate, the annihilation products are usually pions. Suppose 8 pions are produced. Of each possible type pi+,Pi- and pi^0, how many pions are possible? What is the maximum number of pions that can be produced in a proton? antiproton annihilation nuclear reaction? Number When a proton and an antiproton annihilate, the annihilation products are usually pions. Suppose 8 pions are produced. Of each possible type ? , ? - and ? 0, how many pions are possible? What is the maximum number of pions that can be produced in a proton???antiproton annihilation nuclear reaction?

Explanation / Answer

By the quark model, there are 2 up and 1 down subatomic particles in proton and therefore, 2 down and 1 up subatomic particles in anti-proton.

pion+ is composed of one up and one anti-down particle

pion- is composed of one down and one anti-up particle

pion0 is composited of one up/down and one anti-up/anti-down paticle

Therefore, in the 8 pions produced by proton and antiproton annihilation reaction, 1 pion+, 1 pion- and 6 pion0 are possible.

Maximum number of pions that can be produced theoretically is 13, based on the energy of the particles.

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