7C.1 Particle Interactions Flashcards
what is Ernestine’s equation that links energy with mass and what does it tell us
E = mc^2 which tells use mass can make energy and energy can make mass
what is pair-production
it is a phenomenon at which both a particle and its equivalent anti-matter are both created simultaneously in a conversion of energy
momentum and energy in pair-production
so in simple terms pair production is like explosions, the momentum and energy of each particle and its anti-matter need to add up to the same momentum and energy as the original form of energy that made them, also as in explosions the particles and its anti-matter need to have equal and opposite components of momentum in order for them to have zero direction like the energy before them did
what are the properties of anti-particles
the same as there particles but their properties are opposite to them (for example a positive particle its anti particle would be negative)
what is annihilation
is is the phenomenon in which a particle and its equivalent anti-matter are both destroyed simultaneously in a conversion into energy which is carried by a force carrier such as a proton
why can we not use annihilation to power up things in the world
since there is little anti-matter in the world and if we find anti matter it will annihilate as soon as it getting in contact with matter so before we feed it into an electricity chamber
what is an electronvolt
it is the amount of energy an electron gained by passing though a volt of 1 1 ev = 1.16 x 10^-19
1 u of a mass is equivalent to
931.5 MeV/c^2 u=1.66 x 10^-27
