Question

How was quark and hadrons discovered (partcile physics)

Answer 1

We have tabulated the answer for your convenience.

S. No.	Aspect or statement	Description or Reason
(1)	How was quark discovered?	(a) The quark model was proposed by Murray Gell-Mann and George Zweig in 1964.
		(b)But quark was evidenced first in 1968. Deep inelastic scattering experiments were performed at that time at the Stanford Linear Accelerator Center.
		(c) The deep inelastic scattering experiments showed: (i) Proton contained much smaller, point-like objects (quarks). (ii) Thus, proton was not an elementary particle.
(2)	How was hadron discovered?	(a) The term "hadron" was introduced by Lev B. Okun in 1962.
		(b)Proton is also a hadron under Baryon category and proton was discovered in 1919 by Rutherford.
		(c)In 1964, Xi baryon (a kind of hadron) was discovered at Brookhaven National Laboratory.
		(d) Xi baryon was found as a daughter product from the decay of the omega baryon.

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