Short answer: Murray Gell-Mann was an American physicist who proposed the idea of quarks in 1964 and gave them their name. He won the Nobel Prize in Physics in 1969 for his work on classifying elementary particles.
Quick facts
- Born: 1929, New York City
- Died: 2019, Santa Fe, New Mexico
- Known for: the quark model, the idea of “strangeness”, and the “Eightfold Way”
- Prize: Nobel Prize in Physics, 1969
The problem he wanted to solve
By the 1950s and 1960s, scientists had found dozens of new particles. It looked like a messy zoo with no order. Gell-Mann looked for a pattern, the way a chemist looks at a table of elements.
Strangeness
In the early 1950s he introduced a new property called “strangeness” to explain why some particles lived longer than expected. This idea later led to the strange quark.
The Eightfold Way
He grouped particles into neat families based on their properties. The pattern was a clue that the particles might be made of smaller pieces.
The quark idea (1964)
Gell-Mann suggested that protons, neutrons and similar particles are made of smaller pieces that carry fractions of electric charge. At around the same time, physicist George Zweig had a similar idea and called the pieces “aces”. The name “quark” is the one that stuck.
Where the name came from
He had the sound “kwork” in his head first, and later found a line in James Joyce’s novel Finnegans Wake that said “Three quarks for Muster Mark”. In the book, “quark” is a cry like a seagull’s squawk. Since protons and neutrons have three quarks each, the name fit well. Read more in quark meaning and origin.
Other work
Gell-Mann taught at Caltech for many years and helped start the Santa Fe Institute, a research center that studies complex systems. He was also known for a wide range of interests, from languages to nature.
Why he matters today
The quark model is a main part of how we understand matter. Later experiments found all six quark flavours and showed that his idea was right. See the six quark flavours.
Quick FAQ
Did Gell-Mann discover quarks?
He proposed them as a theory in 1964. Experiments later confirmed that quarks are real.
Why is it called a quark?
He took the word from a line in a James Joyce novel and liked the sound.