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Which of the following reactions: i. π+p→K+1° ii. p+p→л+ + π¯¯ iii. τ → e¯ + √₁ + Ve iv. μ +е →Vμ + Ve are allowed for free particles and which are forbidden? Explain why for each forbidden case and draw one lowest order Feynman diagram for each of the allowed reactions. (Note: A° = uds; m₁₁ = 1116 MeV/c²; K° = ds; mкo = 498 MeV/c²)

Which of the following reactions: i. π+p→K+1° ii. p+p→л+ + π¯¯ iii. τ → e¯ + √₁ + Ve iv. μ +е →Vμ + Ve are allowed for free particles and which are forbidden? Explain why for each forbidden case and draw one lowest order Feynman diagram for each of the allowed reactions. (Note: A° = uds; m₁₁ = 1116 MeV/c²; K° = ds; mкo = 498 MeV/c²)

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(a) Which of the following reactions: i. π¯ + p→ K° +1° ii. р+pл+π5 iii. τe¯ + √₁ + Ve iv. μe + Ve are allowed for free particles and which are forbidden? Explain why for each forbidden case and draw one lowest order Feynman diagram for each of the allowed reactions. (Note: A° = uds; m = 1116 MeV/c²; K° = ds; mкo = 498 MeV/c²)
Transcribed Image Text:(a) Which of the following reactions: i. π¯ + p→ K° +1° ii. р+pл+π5 iii. τe¯ + √₁ + Ve iv. μe + Ve are allowed for free particles and which are forbidden? Explain why for each forbidden case and draw one lowest order Feynman diagram for each of the allowed reactions. (Note: A° = uds; m = 1116 MeV/c²; K° = ds; mкo = 498 MeV/c²)
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