Normalization of a pair distribution function

AI Thread Summary
The discussion centers on a simulation involving the calculation of pair distribution functions, particularly the radial distribution function and time to collision. The radial distribution function was successfully calculated by determining distances between particle pairs and normalizing the results against an ideal gas. However, there is confusion regarding the normalization of the time to collision distribution, as the original source uses arbitrary units and proportionality signs without clear definitions. The participant seeks clarification on how to properly normalize the time to collision function, as their current results are incorrect. Understanding the normalization process is crucial for accurate simulation outcomes.
Korbid
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Hi,

i'm performing a simulation about this potential http://motion.cs.umn.edu/PowerLaw/
I calculated the radial distribution function succesfully but i don't know how these guys are normalized the other pair distribution function, as a function of time to collision.

Could anyone help me?

Thanks!
 
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These guys do everything with the proportional to sign ##\propto##, and they use arbitrary units (or don't mention units at all), so that's going to be difficult. Could you specify what you did to calculate the radial distribution function succesfully and what you meant with that statement ? I, for one, have no idea what it means if g(r) = 5 at r = 0.5 m (fig 1, top).
 
BvU,
first thanks to answering me.

i'm performing the same simulation with Python programming language.
The radial distribution function has been determined by calculating the distance between all particle pairs and binning them into a histogram. The histogram is then normalized with respect to an ideal gas. For two dimensions, this normalization is the number density of the system multiplied by the area enclosed between two circles with radius determined by two consecutives bins.

My issue is about the other pair distribution function (time to collision).
I need to know how they are normalized the function because i calculated the time to collision and binning them into a histogram but my results are wrong.
 
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