Standard Model Flashcards
Name of the two groups of particles that make up ‘Fermions’
Quarks and Leptons
An electron is an example of a quark or lepton
Lepton
Why can’t particle accelerators accelerate neutrons
They are neutral so won’t accelerate in an electric field
State what is meant by a ‘Fundamental particle’
A particle that cannot be broken down any further
Evidence for existence of neutrinos
Beta decay
Hadrons are made of -
Quarks
Baryons are made of
3 Quarks
Mesons are made of
Quark and Antiquark
Up quark (2/3 charge) + 2 Down quarks (-1/3 charge each) makes a
Baryon called a ‘Neutron’ with Charge = O
Force mediating particles are called
Bosons
Force mediating particle associated with the Strong force
Gluon
Force mediating particle associated with the weak force
W and Z bosons
Force mediating particle associated with Electromagnetic force
Photon
In beta decay a proton is converted into a neutron + anti-neutrino + ‘which other particle’
Electron (hence ‘Beta’ decay as a Beta particle is a fast moving electron)
Antimatter particles have the same mass but opposite
Charge
If antimatter comes into contact with matter it will
Be destroyed giving out energy.
This machine accelerates Hadrons and smashes them into each other, providing evidence for the existence of quarks and other fundamental particles
Particle Accelerator OR Synchotron or Large Hadron Collider
