PPT Slide
Coherent Nuclear Interactions
The nuclei act as sources of fields. The interaction is between the exchange particles of the fields.
Electromagnetic Fields – photons
Strong-Force Fields – gluons(mesons/Pomerons)
For coherent interactions, the maximum momentum transfer is determined by the nuclear form factor / nuclear size:
This has two important consequences:
1) The final state will have a low pT, pT ? 1/R
2) The maximum photon energy is ? ? (1/R)
Heavy-Ions are advantageous because L?? ? Z4