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11.1 Introduction to Particle Physics

Four fundamental forces and the bosons that carry them, quark and lepton families, fermion-boson statistics, and antiparticles and annihilation.

University Physics Volume 3, 11.1 Introduction to Particle Physics

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4 exercises

11.1 Exercise 1

What are the four fundamental forces? Briefly describe them.

2.5

11.1 Exercise 3

List the quark and lepton families

2.5

11.1 Exercise 5

How much energy is released when an electron and a positron at rest annihilate each other? (For particle masses, see the table.)

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11.1 Exercise 7

When both an electron and a positron are at rest, they can annihilate each other according to the reaction

e−+e+→γ+γ.e^{−} + e^{+} \rightarrow \gamma + \gamma .

In this case, what are the energy, momentum, and frequency of each photon?

2.5
10.7 Medical Applications and Biological Effects of Nuclear Radiation11.2 Particle Conservation Laws

Adapted from University Physics Volume 3 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 3. Imported at revision db44eb9.

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