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A-level PHYSICS Paper 1, questions

Determine whether the following reaction is a possible decay for the neutral pion π0. π0 → e− + μ+ + ev State the two possible quark configurations of a π0. A student suggests that the kaon K0 and the anti-kaon K0􀴤􀴤􀴤􀴤 are the same particle. Discuss whether this suggestion ... is correct. The nucleus is held together by a force. It was predicted that a particle exists that is responsible for this force. The particle itself must experience this force. The particle would have a rest energy between that of an electron and half that of a nucleon. Discuss whether a kaon, a muon and a pion each have the properties of the predicted particle. Information about these three particles is in the Data and Formulae Booklet. [Show More]