Particle Physics Collaboration and Quarks

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Questions and Answers

What type of particles make up hadrons?

  • Quarks (correct)
  • Bosons
  • Leptons
  • Mesons

Which property must be conserved during all particle interactions?

  • Charge (correct)
  • Baryon number
  • Lepton number
  • Strangeness

In the decay process of a neutron into a proton, which particle is emitted?

  • Positron
  • Electron
  • Muon
  • Neutrino (correct)

Which particle combination has a charge of +1 and strangeness of 0?

<p>π⁺ (pi-plus) (C)</p> Signup and view all the answers

Which property is only conserved during strong interactions?

<p>Strangeness (D)</p> Signup and view all the answers

What do all baryons decay into?

<p>Protons (A)</p> Signup and view all the answers

Which exchange particle is responsible for the electromagnetic force?

<p>Virtual photon (B)</p> Signup and view all the answers

What is the exchange particle used in beta-plus decay?

<p>Virtual photon (B)</p> Signup and view all the answers

Which type of particles are hadrons made of?

<p>Quarks (A)</p> Signup and view all the answers

Which fundamental force is not explicitly mentioned in the text as being mediated by a specific exchange particle?

<p>Gravity (C)</p> Signup and view all the answers

Which type of particle cannot be further broken down according to the text?

<p>Leptons (A)</p> Signup and view all the answers

What type of decay involves the conversion of a neutron into a proton?

<p>Beta-minus decay (A)</p> Signup and view all the answers

What is the main purpose of a PET scanner?

<p>To annihilate positrons with electrons (C)</p> Signup and view all the answers

Which fundamental force is responsible for forces between particles caused by exchange particles?

<p>Electromagnetic (A)</p> Signup and view all the answers

What happens in pair production?

<p>A photon is converted into an equal amount of matter and antimatter (C)</p> Signup and view all the answers

How is repulsion described in terms of exchange particles?

<p>Exchange of heavy balls causing movement (B)</p> Signup and view all the answers

What type of energy is released when a positron annihilates with an electron?

<p>Kinetic energy (D)</p> Signup and view all the answers

In pair production, under what condition can a photon be converted into matter and antimatter?

<p>When the photon has greater energy than the total rest energy of the particles (B)</p> Signup and view all the answers

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