Biography:Murray Gell-Mann



Murray Gell-Mann
Murray Gell-Mann
Born	15 September 1929 New York City, U.S.
Died	24 May 2019 Santa Fe, New Mexico, U.S.
Known for	Quark model; eightfold way; quantum chromodynamics; strangeness
Awards	Nobel Prize in Physics (1969)

Murray Gell-Mann (15 September 1929 - 24 May 2019) was an American theoretical physicist who introduced the quark model and helped organize the classification of strongly interacting particles. He received the 1969 Nobel Prize in Physics for contributions concerning the classification of elementary particles and their interactions.

Gell-Mann's eightfold way used symmetry principles to arrange hadrons into families. His quark model gave a deeper explanation of that pattern and became one of the conceptual steps toward quantum chromodynamics, the theory of the strong interaction.

Quarks and QCD

The quark model transformed particle physics by treating many observed hadrons as composite systems. In the later Standard Model, quarks interact through gluons described by non-Abelian gauge theory.

Gell-Mann's work connects symmetry, particle classification, non-Abelian gauge theory, and the Standard Model. It also remains important for understanding confinement, hadron structure, and the historical development of QCD.

See also

• Physics:Quantum chromodynamics (QCD)
• Physics:Quantum Standard Model
• Physics:Quantum Non-Abelian gauge theory
• Physics:Quantum confinement problem

References

Source attribution: Biography:Murray Gell-Mann