Difference between revisions of "Antiquark"
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*Combine with other [[antiquark]]s to form [[antibaryon]]s or with [[quark]]s to form [[meson]]s. | *Combine with other [[antiquark]]s to form [[antibaryon]]s or with [[quark]]s to form [[meson]]s. | ||
*[[Quark]]s and [[antiquark]]s are fundamental constituents of [[matter]]. | *[[Quark]]s and [[antiquark]]s are fundamental constituents of [[matter]]. | ||
| + | |||
| + | {| border="1" style="border-collapse:collapse" | ||
| + | |+Properties of the [[antiquark]]s | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Antiquark]]''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Strangeness]]''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Conservation of Baryon Number|Baryon Number]]''' | ||
| + | | style="height:20px; width:120px; text-align:center;"|'''[[Conservation of Lepton Number|Lepton Number]]''' | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antiup-quark]] | ||
| + | | 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>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antidown-quark]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=+\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antistrange-quark]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=+\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=+1</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antitop-quark]] | ||
| + | | 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>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Antibottom-quark]] | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>Q=+\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>S=0</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |- | ||
| + | | style="height:20px; width:120px; text-align:center;"| | ||
| + | [[Anticharm-quark]] | ||
| + | | 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>B=-\frac{1}{3}</math> | ||
| + | | style="height:20px; width:120px; text-align:center;"|<math>L=0</math> | ||
| + | |} | ||
| + | |||
===Examples=== | ===Examples=== | ||
*The [[antiproton]] is made up of [[antiquark]]s. | *The [[antiproton]] is made up of [[antiquark]]s. | ||
*[[Antiquark]]s are produced in high-energy [[particle]] collisions. | *[[Antiquark]]s are produced in high-energy [[particle]] collisions. | ||
Revision as of 09:54, 19 May 2024
ANTIQUARK
Key Stage 5
Meaning
An antiquark is the antiparticle of a quark.
About Antiquarks
- Antiquarks have opposite electric charge and "colour charge" to quarks.
- Combine with other antiquarks to form antibaryons or with quarks to form mesons.
- Quarks and antiquarks are fundamental constituents of matter.
| Antiquark | Charge/e | Strangeness | Baryon Number | Lepton Number |
| \(Q=-\frac{2}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) | |
| \(Q=+\frac{1}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) | |
| \(Q=+\frac{1}{3}\) | \(S=+1\) | \(B=-\frac{1}{3}\) | \(L=0\) | |
| \(Q=-\frac{2}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) | |
| \(Q=+\frac{1}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) | |
| \(Q=-\frac{2}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) |
Examples
- The antiproton is made up of antiquarks.
- Antiquarks are produced in high-energy particle collisions.