Struct Acts::MaterialInteraction¶
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struct Acts::MaterialInteraction
The Material interaction struct It records the surface and the passed material This is only nessecary recorded when configured.
Public Members
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double deltaP = 0.0
The momentum change due to the interaction.
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MaterialSlab materialSlab
The effective, passed material properties including the path correction.
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double pathCorrection = 1.
The path correction factor due to non-zero incidence on the surface.
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double sigmaPhi2 = 0.0
Expected phi variance due to the interactions.
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double sigmaQoP2 = 0.0
Expected q/p variance due to the interactions.
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double sigmaTheta2 = 0.0
Expected theta variance due to the interactions.
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const Surface *surface = nullptr
The surface where the interaction occured.
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double time = 0.0
The particle time at the interaction.
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bool updatedVolumeStep = false
Update the volume step to implment the proper step size.
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const TrackingVolume *volume = nullptr
The volume where the interaction occured.
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double deltaP = 0.0