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

Q2:

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

Q3:

What is the charm of a charm antiquark?

Q4:

What is the charm of a charm quark?

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 c c c .

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 D is a meson with the composition c u ̄ . What is the charm of the D ?

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