Kinematic invariants Flashcards
(7 cards)
1
Q
What are the three reference frames of a collision?
A
Centre of Momentum frame
Fixed target frame
Lab frame
2
Q
What is the Mandelstam s?
A
S=∑E_i-|∑|p_i c|^2
Which is invariant
3
Q
Where is s conserved?
A
In the initial and final state
4
Q
Why do we build colliders?
A
Colliders are far more efficient when you want to probe high energy effectsW
5
Q
What is s in the COM frame?
A
s=(E1+E2)^2
6
Q
What is s in the Lab frame?
A
s=(E1+E2)^2-|p1+p2|^2c^2
7
Q
What is s in the fixed target frame?
A
s=2E1m2c^2+m1^2c^4+m2^2c^4
