My Activities at VECC during the last visit

Hemen Kumar KalitaGauhati University

Special thanks to: Partha Pratim Bhaduri (VECC) 1

Outline: # First I've tried to read the mcpoints i.e. the information from the

input files and get the position co-ordinates of the corresponding mcpoints and by looping over all the mcpoints generated the following plots:

● Distribution of mcpoints

● x vs y and r distributions.

# Plots of Hit Efficiency per layer.(where Hit Efficiency =no. of Hits/no. of mcpoints)

# Plots of position resolution.

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All the plots are generated for 1K Pluto and embedded events

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For pluto For embedded

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For pluto

For embedded

Layer # 1

Front side of Layer # 1

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For pluto

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x vs y dist. for layer # 1

For embedded

Front side of layer # 1 Back side of layer # 1

8For embedded

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For embedded eventsFor pluto

Layer # 1 Front side of Layer # 1

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For pluto

Front side of layer # 1

Layer # 1

11For embedded events

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For pluto

For embedded

Front side of layer # 1

Layer # 1

13For pluto

layer # 1 Front side of layer # 1

14For embedded

Hit Efficiency per layer =no. of Hits per layer / no. of mcpoints per layer

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For pluto

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Hit Efficiency per layer =no. of Hits per layer / no. of mcpoints per layer

For embedded

Float_t delx = (x_mcp – x_h); // position resolution for x

Float_t dely = (y_mcp – y_h); // position resolution for y

Float_t delz = (z_mcp – z_h); // position resolution for z

* ' *_h represent the position of the hit and * ' * _mcp represent the position of the associated mcpoint.

17For pluto

18For pluto

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Float_t delx = (x_mcp – x_h); // position resolution for x

Float_t dely = (y_mcp – y_h); // position resolution for y

Float_t delz = (z_mcp – z_h); // position resolution for z

* ' *_h represent the position of the hit and * ' * _mcp represent the position of the associated mcpoint.

For embedded

20For embedded

Summary:-

# Now I can read the information from the input files i.e. mcpoints, mctracks and extract

track parameters from there.

# Can generate all the plots for each layer i.e. station by station.

# Can get the track ID and get the corresponding Pdgcode of the track.

# Can calculate hit efficiency per layer and plot the graph

# Can get the position resolution and compare the distribution of mcpoints with the associated mcpoints of the hits.

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Thank You