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Confinement and Asymptotic Freedom of Quarks
| Content Provider | AK Lectures |
|---|---|
| Description | As we previously discussed, quarks always exist in groups and we cannot isolate and observe, at least experimentally, individual quarks. This property and behavior of quarks is known as quark confinement. One useful method that helps us visualize quark confinement is known as the "Bag Model for Quark Confinement" and it imagines that quarks are confined to elastic bags that require a tremendous amount of energy to stretch. As you attempt to stretch the bag, the amount of energy that you input far exceeds the energy required to produce new quark groups and so instead of separating the quarks, you end up producing more quarks. One interesting property of the color force (also known as the strong force) that exists between quarks is that at extremely short distances, the color force actually becomes weak. That means that as quarks come together to form a hadron, lets say the proton, the color force weakens greatly and the quarks freedom of motion greatly increases. This means that they are able to move about freely inside the proton and this concept is known as asymptotic freedom. Of course, as you begin moving the quarks away from one another and try to separate them, the distance between quarks increases and the color force increases as well. |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Modern Physics input distances move method form bags bag groups attempt quarks |
| Content Type | Video |
| Educational Role | Teacher Student |
| Educational Use | Self Learning Lecture Reading |
| Resource Type | Video Lecture |
| Education Level | Under Graduate |
| Subject | Modern physics |
