(a) Is a hadron always a baryon?(b) Is a baryon always a hadron?(c) Can an unstable baryon decay into a meson, leaving no other baryon?

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Author:Paul Peter Urone, Roger Hinrichs
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Chapter33: Particle Physics
Section: Chapter Questions
Problem 12CQ: (a) Is a hadron always a baryon? (b) Is a baryon always a hadron? (c) Can an unstable baryon decay...
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(a) Is a hadron always a baryon?
(b) Is a baryon always a hadron?
(c) Can an unstable baryon decay into a meson, leaving no other baryon?

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(a) Is a hadron always a baryon

The particles that feel strong nuclear force are known as hadrons and particles that don't feel strong nuclear force are known as Leptons. Mesons and baryons are two different types of Hadrons.

(b) Is a baryon always a hadron
 
By definition, baryons are a type of hadrons that always decays into another baryon. Hence, a baryon is always a hadron. However, the converse is not true as shown in part (a).
 
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