Difference between revisions of "TOF Efficiencies"
From GlueXWiki
(→TOF Efficiencies) |
(→TOF Efficiencies) |
||
| Line 2: | Line 2: | ||
# Use the root output file from the plugin TOF_Eff. It contains a root tree with tracks and associated information of the TOF. In particular it has data about the expected TOF paddle hits and actual TOF paddle hits. | # Use the root output file from the plugin TOF_Eff. It contains a root tree with tracks and associated information of the TOF. In particular it has data about the expected TOF paddle hits and actual TOF paddle hits. | ||
| − | # Generate 2d plots of the expected paddle hit (from the extrapolated track) vs. the nearest paddle that actually had a hit. This can be done also by requiring in addition that the paddle in the other plane is a perfect match to the track.The following plot shows such a distribution for particle tracks with momenta between 2.0GeV/c and 2.5GeV/c<br> [[File:predicted_vs_hit_paddle_p2.5GeV.jpg| | + | # Generate 2d plots of the expected paddle hit (from the extrapolated track) vs. the nearest paddle that actually had a hit. This can be done also by requiring in addition that the paddle in the other plane is a perfect match to the track.The following plot shows such a distribution for particle tracks with momenta between 2.0GeV/c and 2.5GeV/c<br> [[File:predicted_vs_hit_paddle_p2.5GeV.jpg|700px]] <br> The first bin (paddle 0) in the vertical axis means the extrapolated track did not reach the TOF counters. |
Revision as of 11:02, 29 November 2016
TOF Efficiencies
- Use the root output file from the plugin TOF_Eff. It contains a root tree with tracks and associated information of the TOF. In particular it has data about the expected TOF paddle hits and actual TOF paddle hits.
- Generate 2d plots of the expected paddle hit (from the extrapolated track) vs. the nearest paddle that actually had a hit. This can be done also by requiring in addition that the paddle in the other plane is a perfect match to the track.The following plot shows such a distribution for particle tracks with momenta between 2.0GeV/c and 2.5GeV/c
The first bin (paddle 0) in the vertical axis means the extrapolated track did not reach the TOF counters.
