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Date November 2010 Marks available 3 Reference code 10N.3.HL.TZ0.J3
Level Higher level Paper Paper 3 Time zone Time zone 0
Command term State Question number J3 Adapted from N/A

Question

This question is about the standard model.

State what is meant by the standard model.

[3]
a.

Use the conservation of lepton number and charge to deduce the nature of the particle x in the following reaction.

\[{v_{\text{e}}} + {\mu ^ - } \to {e^ - } + x\]

[1]
b.

State what is meant by deep inelastic scattering.

[1]
c.

Markscheme

the theory that describes the electromagnetic and weak (and strong) interaction of quarks and electrons/particles;

a.

\({v_\mu }\) / muon neutrino;

b.

scattering (of leptons by hadrons) in which large amounts of energy is transferred (to the hadrons);

c.

Examiners report

A significant number of candidates left the question unanswered. Of those candidates who did attempt the question very few knew anything about deep inelastic scattering.

a.

A significant number of candidates left the question unanswered. Of those candidates who did attempt the question very few knew anything about deep inelastic scattering.

b.

A significant number of candidates left the question unanswered. Of those candidates who did attempt the question very few knew anything about deep inelastic scattering.

c.

Syllabus sections

Core » Topic 7: Atomic, nuclear and particle physics » 7.3 – The structure of matter
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