standard model Flashcards
What is the standard model?
a model of fundamental particles and interactions
What is the standard model?
a model of fundamental particles and interactions
Where does the evidence for the existence of quarks come from?
high-energy collins between electrons and nucleons carried out in particle accelerators
What does every particle have?
an anti particle
What is the production of energy in annihilation evidence for?
the existence of anit matter
What happens when a particle and anti particle coe meet?
they annihilate and produce energy
What is the charge on an up quark?
+2/3
What is the charge of in an anti quark?
-2/3
What are fermions?
quarks and leptons
What are the six different quarks?
up, down, charm, strange, top, bottom
What are leptons?
electrons, muons, tau, and their associated neutrinos
What are hadrons?
an particle made up of quarks
What are baryons?
any particle made up of 3 quarks
What are mesons?
any particle made up of a quark and anti quark
What are bosons?
force meditating particles, photons (electromagnetic force), W- and Z-bosons (weak force), gluons (strong force)
