If a process involves two particles that are … [particle] arrives at a counter is an alternative which cannot be … [in quantum mechanics] of alternatives which cannot be distinguished- -interferes with the original, … [p. 4-2] Particles which interfere with a positive sign … The Bose particles are the photon, the mesons, … the baryons. … For particles with spin--like electrons--there is an additional … spins. It is only for identical particles with … [probability] amplitudes interfere when the particles are exchanged. … [p. 4-3] every composite object which has a half- … Bose particle.
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