Determine whether the following decay for the charged pion π+\pi^+π+ is possible:
π+→e++νμ \pi^+ \to \text{e}^+ + \nu_\mu π+→e++νμState the quark configurations of the neutral kaon K0\text{K}^0K0 and the anti-kaon Kˉ0\bar{\text{K}}^0Kˉ0.
A student suggests that both the neutral pion π0\pi^0π0 and the neutral kaon K0\text{K}^0K0 are their own antiparticles.
Discuss whether this suggestion is correct, referencing their quark configurations or other physical properties.
50 exam-style questions on AQA A Level Physics Particles, covering Constituents of the atom, Stable and unstable nuclei, Particles, antiparticles and photons, Particle interactions, Classification of particles, Quarks and antiquarks, and Applications of conservation laws. Each one has a worked solution and a mark scheme showing where the marks go.