# Worksheet: Charm

In this worksheet, we will practice determining the charm of composite particles and sets of particles and whether given interactions conserve charm.

**Q1: **

A is a baryon with the composition dds. What is the charm of the ?

**Q2: **

A is a baryon with the composition udc. What is the charm of the ?

- A+2
- B+1
- C
- D
- E0

**Q3: **

What is the charm of a charm antiquark?

**Q5: **

What is the charm of a muon?

**Q6: **

What is the charm of a top quark?

**Q7: **

A type of omega baryon has the composition .

What is the charm of this omega baryon?

What is the relative electric charge of this omega baryon?

**Q8: **

The following equation shows a D meson decaying into a kaon and two pions,

What is the total charm before this interaction takes place?

What is the total charm after this interaction takes place?

**Q9: **

A is a meson with the composition . What is the charm of the ?

**Q10: **

The following equation shows a charmed lambda baryon decaying into a proton, a kaon, and a pion.

What is the total charm before this interaction takes place?

What is the total charm after this interaction takes place?