Flashcards in Particles Deck (17)
What is the definition of an isotope?
An atom with the same number of protons but a different number of neutrons.
What is the nucleon number?
the total number of of protons and neutrons
what is the proton number?
the total number of protons
what is specific charge?
the charge mass ratio of a particle0
measured in C/Kg
Describe the nature of an alpha particle
a helium nucleus
state four neutrinos
electron, muon, electron neutrino, muon neutrino
a Hadron is a particle that feels the strong force
A hadron containing 3 quarks
A hadron containing a quark and an anti-quark
describe the quark structure of a proton and neutron
give the quark structure of a pion+ and pion-
describe the range of the strong nuclear force
Attractive between 0.5 and 3fm, and overcomes the electrostatic repulsion between protons in that range.
At less than 0.5fm, its very repulsive
what are the exchange particles for weak nuclear force
W+ and W-
what force allows for a change in strangeness of quarks?
weak nuclear force
describe electron capture through an equation
p + e- --> n+Ve
describe positron decay
p --> n+ e+ +Ve