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Chapter 11: Problem 3

List the quark and lepton families

Short Answer

Expert verified
The three quark families are as follows: 1. First generation: Up (u) quark with charge +2/3 and Down (d) quark with charge -1/3 2. Second generation: Charm (c) quark with charge +2/3 and Strange (s) quark with charge -1/3 3. Third generation: Top (t) quark with charge +2/3 and Bottom (b) quark with charge -1/3 The three lepton families are as follows: 1. First generation: Electron (e) with charge -1 and Electron neutrino (\(\nu_e\)) with charge 0 2. Second generation: Muon (\(\mu\)) with charge -1 and Muon neutrino (\(\nu_\mu\)) with charge 0 3. Third generation: Tau (\(\tau\)) with charge -1 and Tau neutrino (\(\nu_\tau\)) with charge 0

Step by step solution

01

Understanding Quarks

Quarks are elementary particles and are the constituents of protons and neutrons. They come in six flavors, which are grouped into three generations or families. Each family consists of an up-type quark with charge +2/3 and a down-type quark with charge -1/3.
02

Understanding Leptons

Leptons are also elementary particles and consist of charged leptons (also called electron-like particles) and their associated neutrinos. Charged leptons have a charge of -1, while neutrinos are electrically neutral. Just like quarks, leptons are also grouped into three generations or families.
03

Listing the Quark Families

There are three quark families, each consisting of an up-type quark and a down-type quark. We can list them as follows: 1. First generation: Up (u) quark with charge +2/3 and Down (d) quark with charge -1/3 2. Second generation: Charm (c) quark with charge +2/3 and Strange (s) quark with charge -1/3 3. Third generation: Top (t) quark with charge +2/3 and Bottom (b) quark with charge -1/3
04

Listing the Lepton Families

Similar to quarks, there are three lepton families, each consisting of a charged lepton and a neutrino. We can list them as follows: 1. First generation: Electron (e) with charge -1 and Electron neutrino (\(\nu_e\)) with charge 0 2. Second generation: Muon (\(\mu\)) with charge -1 and Muon neutrino (\(\nu_\mu\)) with charge 0 3. Third generation: Tau (\(\tau\)) with charge -1 and Tau neutrino (\(\nu_\tau\)) with charge 0

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