Possible Incident Energies, only one can be given:
Sqrtsnn
(double, optional, no default): E_Kin
(double, optional, no default): P_Lab
(double, optional, no default): Note that using E_kin
or P_Lab
to quantify the collision energy is not sufficient to configure a collision in a fixed target frame. You need to additionally change the Calculation_Frame
. Any format of incident energy can however be combined with any calculation frame, the provided incident energy is then intrinsically translated to the quantity needed for the computation.
Calculation_Frame
(string, optional, default = "center of velocity"):
The frame in which the collision is calculated.
"center of velocity"
"center of mass"
"fixed target"
Fermi_Motion
(string, optional, default = "off"):
"on"
- Switch Fermi motion on, it is recommended to also activate potentials "off"
- Switch Fermi motion off "frozen"
- Use "frozen" if you want to use Fermi motion without potentialsCollisions_Within_Nucleus
(string, optional, default = false)
Determine whether to allow the first collisions within the same nucleus.
true
- First collisions within the same nucleus allowed false
- First collisions within the same nucleus forbiddenTo further configure the projectile, target and the impact parameter, see
The following example configures a Cu63-Cu63 collision at \(\sqrt{s_{NN}}=3.0\) GeV with zero impact parameter and Fermi motion taken into consideration. The calculation frame is the default, center of velocity, and the nuclei are not deformed.
Modi: Collider: Projectile: Particles: {2212: 29, 2112 :34} Target: Particles: {2212: 29, 2112 :34} Sqrtsnn: 3.0
To further use Fermi motion and allow the first collisions within the projectile or target nucleus, the corresponding options need to be activated by means of:
Fermi_Motion: "on" Collisions_Within_Nucleus: True
Additionally, the impact parameter may be specified manually. See Impact Parameter for an example.
./smash