What are quarks? Why can’t you observe individual quarks?

Quarks are simpler particles that make up all hadrons. The force of mutual attraction of quarks increases with an increase in the distance between them. Therefore, in the collision of nuclei: having a sufficiently large energy, new pairs of quarks are immediately combined into new hadrons.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.