The baryon having which of the following quark contents has electric charge −e?
A) csd
B) dds
C) uud
D) bbc

Question

Quizplus · Accepted Answer

Baryons are made up of three quarks. The electric charge of a baryon is the sum of the charges of its constituent quarks. The quark charges are as follows: up (u) quark has a charge of +2/3 e, down (d) and strange (s) quarks have a charge of -1/3 e, charm (c) quark has a charge of +2/3 e, and bottom (b) quark also has a charge of -1/3 e. For option B, dds, the total charge is (-1/3) + (-1/3) + (-1/3) = -1 e, which matches the required electric charge of -e.

The Baryon Having Which of the Following Quark Contents Has