Robert Mann - An Introduction to Particle Physics and the Standard Model · Problem 6.2

Accelerators — Robert Mann

Physics — Particle Physics · standard-model-allowed-forbidden-reactions

Problem

According to the Standard Model, which of the following reactions are allowed and which are forbidden? State the reasons why if not allowed, state what interaction is responsible for the process. (a)

\bar{n} \longrightarrow \bar{p} + e^+ + \nu

(b)

\gamma + Z^0 \longrightarrow \nu_e + \pi^0

(c)

\mu^+ + \tau^- \longrightarrow \gamma + \gamma + \gamma

(d)

Z^0 \longrightarrow \bar{\nu}_\mu + \nu_\mu

(e)

D^0 \longrightarrow K^- + \rho^+

(f)

e^- + \bar{\nu} \longrightarrow \bar{t} + b

Related theory

Physics Beyond The Standard Model

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