Difference between revisions of "Up-quark"
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==Key Stage 5== | ==Key Stage 5== | ||
===Meaning=== | ===Meaning=== | ||
| − | An '''up-quark''' is a type of [[quark]] with a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>. | + | An '''up-quark''' ('''u''') is a type of [[quark]] with a [[Electrical Charge|charge]] of <math>+\frac{2}{3}</math>. |
===About Up-quarks=== | ===About Up-quarks=== | ||
| + | : The '''up-quark''' is denoted with a lower case '''u'''. | ||
: There are two '''up-quarks''' in a [[proton]] and only one '''up-quark''' in a [[neutron]]. | : There are two '''up-quarks''' in a [[proton]] and only one '''up-quark''' in a [[neutron]]. | ||
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| style="height:20px; width:120px; text-align:center;"| | | style="height:20px; width:120px; text-align:center;"| | ||
[[Up-quark]] | [[Up-quark]] | ||
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>Q=+\frac{2}{3}</math> |
| style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>B=+\frac{1}{3}</math> |
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> |
|- | |- | ||
| style="height:20px; width:120px; text-align:center;"| | | style="height:20px; width:120px; text-align:center;"| | ||
| − | [[ | + | [[Antiup-quark]] |
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>Q=-\frac{2}{3}</math> |
| style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>B=-\frac{1}{3}</math> |
| − | | style="height:20px; width:120px; text-align:center;"|<math> | + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> |
|} | |} | ||
Latest revision as of 07:58, 19 July 2019
Key Stage 5
Meaning
An up-quark (u) is a type of quark with a charge of \(+\frac{2}{3}\).
About Up-quarks
- The up-quark is denoted with a lower case u.
- There are two up-quarks in a proton and only one up-quark in a neutron.
| Quark | Charge/e | Strangeness | Baryon Number | Lepton Number |
| \(Q=+\frac{2}{3}\) | \(S=0\) | \(B=+\frac{1}{3}\) | \(L=0\) | |
| \(Q=-\frac{2}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) |