Question

(a) Do all particles having strangeness also have at least one strange quark in them?

(b) Do all hadrons with a strange quark also have nonzero strangeness?

Short answer

1. Yes, all particles having strangeness also have at least one strange quark in them.

b. No, not all hadrons have a strange quark with nonzero strangeness.

Step-by-step solution

Definition of Concept

Quarks are considered as the fundamental type of particles, initially it was considered that only three types of quarks are present. Each flavor of quark has its own characteristics like charge, spin, strangeness etc.

Explain all particles having strangeness also have at least one strange quark in them

(a)

Yes, all particles with strangeness contain at least one strange quark. Strangeness, according to the Strangeness Theory, is the property possessed by particles containing at least one strange quark. As a result, there can be no strange particles if there are no strange quarks in them.

Therefore, yes, all particles with strangeness contain at least one strange quark.

Explain all hadrons with a strange quark also have nonzero strangeness

(b)

No, not all hadrons have a strange quark with a strangeness of nonzero. Only the strange quark can have a non-zero strangeness, whereas mesons, protons, and nucleons have zero strangeness because they are made up of an up quark, a down quark, and a no strange quark, which is also known as a sideway quark. Baryons are hadrons as well, but they have positive and negative strangeness due to up and down spin.

Therefore, no, not every hadron has a strange quark with a nonzero strangeness.