2. (i) Examine the following decays and determine if they are allowed under the Standard Model. (a) T° →y+y (b) Ā→ ° +ñ,

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2 I Examine The Following Decays And Determine If They Are Allowed Under The Standard Model A T Y Y B A N 1 (73.8 KiB) Viewed 42 times

2. (i) Examine the following decays and determine if they are allowed under the Standard Model. (a) T° →y+y (b) Ā→ ° +ñ, (A = uds) (c) p →n+et + ve (d) wº ~ ** +1° +7°, (w° = (uũ + dā)/ V2) In the case of allowed reactions, state which interaction is involved and draw a low- est order Feynman diagram for the decay, clearly labelling all particles and vertex strengths. Then rank the allowed reactions in terms of reaction rate, highest to low- est. =