7.3.c feynman diagrams

Which of these is the exchange boson for the strong nuclear force?

• The gluon

• The W^-

• The W⁺

• The Z⁰

Why do some radioisotopes undergo Beta-minus decay?

• Their nucleus contains too many electrons and they need to eject them

• Their nucleus has too many protons and is unstable

• Their nucleus has too many neutrons and is unstable

• Electrons fall into the nucleus from the inner shell and are then ejected

Which Feynman diagram could show an electron emitting a photon. Time is horizontal (no rotating the pictures!)

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Tags

NGSS.HS-PS4-3

Which Feynman diagram could show a positron emitting a photon. Time is horizontal (no rotating the pictures!)

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Tags

NGSS.HS-PS4-3

Which Feynman diagram could show an electron and positron being produced by a photon?

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Tags

NGSS.HS-PS4-3

Which Feynman diagram could show a anti-muon absorbing a photon?

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Which of these symbols on a Feynman diagram is a gluon?

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Which force can Leptons not experience?

• Strong nuclear

• Weak nuclear

• Electromagnetic

• Gravitational

In beta-minus decay which force exchange particle is involved?

• W^-

• W⁺

• gluon

• photon

This diagram is supposed to show beta-plus decay?

What is the mistake with it?

• the W should be negative

• the boson line should be curly

• the B+ arrow should be in the opposite direction

• the neutrino arrow should be in the opposite direction

• the down quark should decay into an up quark