Which of the Following Decays Violates Conservation of Lepton Number $\mu ^ { - } \rightarrow \mathrm { e } ^ { - } + \bar { v } _ { e }$

question 24

Multiple Choice

Which of the following decays violates conservation of lepton number?

• A) \(\mu ^ { - } \rightarrow \mathrm { e } ^ { - } + \bar { v } _ { e }\)
• B) \(\pi ^ { + } \rightarrow \mu ^ { + } + \bar { v } _ { \mu }\)
• C) \(\mathrm { K } ^ { + } \rightarrow \mu ^ { + } + \bar { v } _ { \mu }\)
• D) \(n \rightarrow \mathrm { p } + \mathrm { e } ^ { - } + \overline { \boldsymbol { v } } _ { e }\)
• E) \(\bar { v } _ { e } + \mathrm { p } \rightarrow \mathrm { n } + \mathrm { e } ^ { + }\)

---

Definitions:

Seventeenth Century

The seventeenth century is the period from 1601 to 1700 in the Gregorian calendar, marked by significant developments in various fields such as science, philosophy, and exploration.

Benjamin Franklin

One of the Founding Fathers of the United States, a noted polymath, inventor, scientist, printer, politician, freemason, and diplomat, as well as a key figure in the American Enlightenment and the history of physics for his discoveries and theories regarding electricity.

Germans

People originating from Germany, characterized by their culture, language, and historical contributions to various fields.

English Colonies

Territories in the Americas and other parts of the world that were under the control and administration of the English crown from the late 16th to early 18th centuries.