|Message: Re: angles and tracklengths of (secondary) particles||Not Logged In (login)|
Click on the Forum title, e.g. on the "Forums by Category" page, to read a sequence of postings to the Forum and its threads all in one page. If you are only interested in one thread or the thread following a specific posting, click the thread or the posting, which takes you to a smaller page, which contains only the part you are interested in and may be easier to navigate.
Messages are "chained" if there are only replies at the first level, i.e. 1/1.html, 1/1/1.html etc. In case of "chained" messages the message number is replaced by the icon and there is no indentation.
Inline: Display the subject line only or also the text of the posting(s); for the choice "All" the "Outline" choices are switched off.
|1||0||1||no text / full text of posting|
|2||1||All||text for level 1 only / text for All postings|
Outline: Choose the depth of the posting thread, successive toggle controls provide increasing detail.
|1||2||1||2 levels / 1 level (original posting)|
|2||3||2||3 levels / 2 levels|
|3||3||All||3 levels / all levels (all postings)|
Are your muons starting out with momentum along the z-direction? If so, the very first PreStepPoint's direction will always be along the z-axis (alpha=0deg). You may want to plot the PostStepPoint's direction instead. The multiple scattering angle and the step length are correlated but that angle relates to the direction at the PreStepPoint; e.g. the change of direction during a step and not relative to the initial direction several steps prior.
The edge you find at 60 degrees is probably due to your initial condition (muon kin. energy) being always the same and hence the chosen first simulation step in ice isn't very different from one track history to the next.
I don't know what you are after with your simulation but if you want to know the distribution of muon directions after a given thickness of ice you better simulate slabs of ice and histogram the directions with which the muons emerge.
Hope this helps, Peter
|Inline Depth:||Outline Depth:||Add message:|