Difference between revisions of "Down-quark"
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===About Down-quarks=== | ===About Down-quarks=== | ||
| + | : The '''down-quark''' is denoted with a lower case '''d'''. | ||
: There are two '''down-quarks''' in a [[neutron]] and only one '''down-quark''' in a [[proton]]. | : There are two '''down-quarks''' in a [[neutron]] and only one '''down-quark''' in a [[proton]]. | ||
Latest revision as of 07:58, 19 July 2019
Key Stage 5
Meaning
A down-quark (d) is a type of quark with a charge of \(-\frac{1}{3}\).
About Down-quarks
- The down-quark is denoted with a lower case d.
- There are two down-quarks in a neutron and only one down-quark in a proton.
| Quark | Charge/e | Strangeness | Baryon Number | Lepton Number |
| \(Q=-\frac{1}{3}\) | \(S=0\) | \(B=+\frac{1}{3}\) | \(L=0\) | |
| \(Q=+\frac{1}{3}\) | \(S=0\) | \(B=-\frac{1}{3}\) | \(L=0\) |