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Difference between revisions of "Quark"

(Conserved Quantities)
(Conserved Quantities)
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===Conserved Quantities===
 
===Conserved Quantities===
 
{| border="1" style="border-collapse:collapse"
 
{| border="1" style="border-collapse:collapse"
|+ Properties of the quarks.
+
|+ Properties of the '''quarks'''.
 
| style="height:20px; width:120px; text-align:center;"|'''[[Quark]]'''
 
| style="height:20px; width:120px; text-align:center;"|'''[[Quark]]'''
 
| style="height:20px; width:120px; text-align:center;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]]
 
| style="height:20px; width:120px; text-align:center;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]]
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{| border="1" style="border-collapse:collapse"
 
{| border="1" style="border-collapse:collapse"
|+Properties of the antiquarks
+
|+Properties of the [[antiquark]]s
 
| style="height:20px; width:120px; text-align:center;"|'''[[Antiquark]]'''
 
| 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;"|[[Electrical Charge|'''Charge''']]/[[Elementary Charge|e]]

Revision as of 15:42, 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:

Conserved Quantities

Properties of the quarks.
Quark Charge/e Strangeness Baryon Number Lepton Number

Up-quark

\(q=+\frac{2}{3}\) \(S=0\) \(b=+\frac{1}{3}\) \(l=0\)

Down-quark

\(q=-\frac{1}{3}\) \(S=0\) \(b=+\frac{1}{3}\) \(l=0\)

Strange-quark

\(q=-\frac{1}{3}\) \(S=-1\) \(b=+\frac{1}{3}\) \(l=0\)

Top-quark

\(q=+\frac{2}{3}\) \(S=0\) \(b=+\frac{1}{3}\) \(l=0\)

Bottom-quark

\(q=-\frac{1}{3}\) \(S=0\) \(b=+\frac{1}{3}\) \(l=0\)

Charm-quark

\(q=+\frac{2}{3}\) \(S=0\) \(b=+\frac{1}{3}\) \(l=0\)
Properties of the antiquarks
Antiquark Charge/e Strangeness Baryon Number Lepton Number

Antiup-quark

\(q=-\frac{2}{3}\) \(S=0\) \(b=-\frac{1}{3}\) \(l=0\)

Antidown-quark

\(q=+\frac{1}{3}\) \(S=0\) \(b=-\frac{1}{3}\) \(l=0\)

Antistrange-quark

\(q=+\frac{1}{3}\) \(S=+1\) \(b=-\frac{1}{3}\) \(l=0\)

Antitop-quark

\(q=-\frac{2}{3}\) \(S=0\) \(b=-\frac{1}{3}\) \(l=0\)

Antibottom-quark

\(q=+\frac{1}{3}\) \(S=0\) \(b=-\frac{1}{3}\) \(l=0\)

Anticharm-quark

\(q=-\frac{2}{3}\) \(S=0\) \(b=-\frac{1}{3}\) \(l=0\)