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cse • paper_2 • nuclear_particlecse-2016-subject-07-006

Particle conservation laws — UPSC CSE 2016 Physics PYQ

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Explain the various leptonic family members. What is leptonic number conservation? Based on this conservation law, state whether the following reactions are possible or not:

(i) \pi^- \to \mu^- \bar{\nu}_\tau

(ii) n \to p + e^- \bar{\nu}_e

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