1.5 particle interactions

Created by

Deryn Daley

Cards (31)

the momentum of an object is its mass multiplied by its velocity
When two objects interact, they exert equal and opposite forces on each other
electromagnetic force between two protons
the strong nuclear force holds the neutrons and protons together in a nucleus
the weak nuclear force causes decay
a neutrino can interact with a neutron and change it into a proton.
in a neutron-neutrino interaction, a B- particle (electron) is emitted
an antineutrino can interact with a proton and change it into a neutron
in a proton-antineutrino interaction a B+ particle (positron) is emitted
the weak interaction is the interaction between a W boson
neutron-neutrino interaction
proton-antineutrino interaction
beta decay occurs when an unstable nucleus decays by changing a neutron to a proton or vice versa
weak interaction is responsible for beta decay
W bosons is for beta decay
charge is conserved in both beta decays
in beta- decay, a neutron turns into a proton
in beta+ decay, a proton turns into a neutron
beta- is an electron
beta+ is a positron
beta minus decay
beta plus decay
sometimes a proton in a proton-rich nucleus turns into a neutron as a result of interacting through the weak interaction with an inner-shell electron
electron capture is when a proton in a proton-rich nucleus interactions with an electron through the weak interaction
in electron capture, the W+ boson changes the electron into a neutrino
electron capture can also occur when a proton and electron collide at very high speed
the photon and the W boson are known as force carriers because they are exchanged when the electromagnetic force and the weak nuclear force act
Beta minus decay equation
beta plus decay equation
electron capture equation
four fundamental interactions:
gravitational attraction due to two object's mass
electromagnetic force due to electric charge
strong nuclear force that holds nucleons together
weak nuclear force which causes decay