Particles And Antiparticles Flashcards
What is anti matter
The opposite charge, lepton number, Barton number, strangeness but the same mass
If particle is made of quarks, antiparticle is made of antiquarks
What is annihilation
When a particle and its corresponding antiparticle collide annihilation occurs.
It is the process of mass being turned into energy
Particle and antiparticle are transformed into two photons of energy
What is a photon
Max Planck had the idea that light could be released in packets of energy called photon
What is the equation for the energy of a photon
E=hf=hc/L
(L=lambda)
How is there anything at all
At big bang, matter and antimatter was produced and sent out
There was an imbalance in the amount of matter and antimatter
As there was more matter, all the antimatter was annihilated leaving matter to form protons and atoms and everything around us
What is pair production
The opposite process to annihilation
Energy is converted into mass
A single photon of energy is converted into a particle-antiparticle pair
Why must pair production occur near a nucleus
It recoils to help conserve momentum
