Lecture 10 Flashcards
1
Q
Unified theories
A
the forces (electromagnetism, the weak, the strong and gravity) will unify if the energy is increased enough
2
Q
Quantum chromodynamics
A
another description of strong nuclear interactions
3
Q
Theory of everything
A
a theory of quantum gravity
4
Q
elementary particles
A
something effectively point-like
5
Q
spin formula
A
g(eff) = n(spin) x n(anti) x n(pauli)
if it is anti, = 2 if not = 1
6
Q
quantum of solace
A
S = √s(s+1)ℏ
Sz = msℏ
7
Q
Hot dark matter
A
does not match observations of clustering galaxies
non-baryonic dark matter is cold and does not consist of neutrinos
neutrinos are not highly relativistic
8
Q
Sakharov Conditions for Baryogengesis
A
- Baryon number violation: requires the proton to decay
- CP violation: requires charge and parity to switch during an interaction
- Departure from thermal equilibrium: permits reaction to proceed preferentially in one direction
