Difference between revisions of "Quark"
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: '''Quarks''' always exist as part of [[hadron]] including a [[baryon]], which is a triplet of [[quark]]s or a [[meson]] which is a [[quark]]-[[antiquark]] pair. | : '''Quarks''' always exist as part of [[hadron]] including a [[baryon]], which is a triplet of [[quark]]s or a [[meson]] which is a [[quark]]-[[antiquark]] pair. | ||
: There are 6 types of [[quark]] including: | : There are 6 types of [[quark]] including: | ||
| − | :*[[Up-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>, two of which are found in [[proton]] and one of which is found in a [[neutron]]. | + | :*[[Up-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>[[Elementary Charge|e]], two of which are found in [[proton]] and one of which is found in a [[neutron]]. |
| − | :*[[Down-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>, two of which are found in a [[neutron]] and one of which is found in a [[proton]]. | + | :*[[Down-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]], two of which are found in a [[neutron]] and one of which is found in a [[proton]]. |
| − | :*[[Strange-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math> which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]] into a [[down-quark]]. | + | :*[[Strange-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]] which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]] into a [[down-quark]]. |
| − | :*[[Top-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math> which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. | + | :*[[Top-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>[[Elementary Charge|e]] which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. |
| − | :*[[Bottom-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math> which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. | + | :*[[Bottom-quark]] - With a [[Electrical Charge|charge]] of <math>-\frac{1}{3}</math>[[Elementary Charge|e]] which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. |
| − | :*[[Charm-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math> which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. | + | :*[[Charm-quark]] - With a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>[[Elementary Charge|e]] which [[Radioactive Decay|decays]] quickly via the [[Weak Nuclear Interaction|weak interaction]]. |
===Conserved Quantities=== | ===Conserved Quantities=== | ||
Revision as of 15:23, 18 July 2019
Key Stage 5
Meaning
Quarks are a type of fermion and are the constituent parts of hadrons.
About Quarks
- Quarks are believed to be fundamental particles but they have never been observed on their own.
- Quarks always exist as part of hadron including a baryon, which is a triplet of quarks or a meson which is a quark-antiquark pair.
- There are 6 types of quark including:
- Up-quark - With a charge of \(+\frac{2}{3}\)e, two of which are found in proton and one of which is found in a neutron.
- Down-quark - With a charge of \(-\frac{1}{3}\)e, two of which are found in a neutron and one of which is found in a proton.
- Strange-quark - With a charge of \(-\frac{1}{3}\)e which decays quickly via the weak interaction into a down-quark.
- Top-quark - With a charge of \(+\frac{2}{3}\)e which decays quickly via the weak interaction.
- Bottom-quark - With a charge of \(-\frac{1}{3}\)e which decays quickly via the weak interaction.
- Charm-quark - With a charge of \(+\frac{2}{3}\)e which decays quickly via the weak interaction.