EMTF Data Quality Monitoring

EMTF Plots Documentation (In Progress)

"Good" Cosmic plots from run 266-668 and 270-909

Find bad runs and how they're bad, eg:

-nonphysical wire/strip combinations

-occupancy for sectors/stations turned off

-nonphysical strip/wire hits

-miscellaneous weird stuff

UNLESS SPECIFIED, THE PLOTS ARE FROM COLLISION RUNS

Short Summary of plots and subdirectories

Summary Page:

• CSC LCT and RPC Hit occupancy and BX.
• Track occupancy, pT, phi, eta and timing as well as # of CSC LCTs or RPC hits.
• MPC error summary. (Should be very vew link errors from missing BC0)

• CSC LCT strip and wire per chamber occupancies.

• RPC Hit theta and phi per chamber occupancies.

• Hardware set of variables

• Higher quality version of tracks. Includes tracks that match to SingleMu0 and SingleMu22.

• Timing of all CSC LCTs and RPC Hits that are used in tracks as well as the ration of the total. (Ratios useful for debugging mistiming chambers)

• Summary plots for the quality tests that are applied to the summary and CSCInput plots.

1. EMTF Errors

EMTF Errors	click(large), dblclick(back)
Description: This is the first plot to check! A one dimensional plot detailing error counters on the EMTF boards Known Errors: "Corruptions" hasn't been implemented yet.

2.a EMTF Track Occupancy For Muons

EMTF Track Occupancy

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Description: A two dimensional plot detailing the physical η, φ distribution of collisions tracks reported by the track finder. SelectedTrakcs: Shows higher quality tracks to match SingleMu0 and SingleMu22. Evaluation: The plot should be close to flat with higher occupancy in η>2 for collisions and should be densely filled for η>1 . Six Peaks around the sector edges may be visible. Actions: If distribution does not fit description, contact EMTF experts.

2.b EMTF Track Occupancy For Muons for Cosmics

EMTF Track Occupancy for Cosmics

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Description: A two dimensional plot detailing the physical η, φ distribution of cosmic tracks reported by the track finder. Evaluation: If running is specific bottom-only cosmic triggers, the distribution should be affected accordingly (half of φ range). The plot should be mostly flat with higher occupancy for η~1.2 and clustered around ±1.6 radians in phi for cosmics. SelectedTrakcs: Shows higher quality tracks to match SingleMu0 and SingleMu22. (pT assignment and quality are effectively meaningless for cosmics) Actions: If distribution does not fit description, contact EMTF experts.

3.a EMTF Chambers Occupancy

CSC LCT Chamber Occupancy	click(large), dblclick(back)
Description: A temperature plot of CSC LCT Occupancies as reported by the EMTF. The X axis scrolls through sectors (1-6), and CSC ID's (1-9 for stations 1-6 ). The Y axis has the stations (layers) of the Endcap, going from ME-4 to ME+4 with the outermost representing neighbor LCTs. Evaluation: While a few sectors in ME1 may be empty, most should have a few hits. Chambers 1-3 in each sector tend to have higher occupancies due to being in ring 1 and thus closer to the beam. Actions: if one or both tests fail and the histogram is red the expert must contact the CSC Trigger responsible.
	click(large), dblclick(back)

3.b EMTF Chambers Occupancy (CSC format)

CSC LCT Chamber Occupancy 2	click(large), dblclick(back)
Description: A temperature plot of CSC LCT Occupancies as reported by the EMTF. The X axis scrolls through chambers for this plot including N for neighbor LCTs. The Y axis goes through each ring including both 1/1a and 1/1b. Note, rings that only have 18 chambers are weighted by .5 and fill 2 bins. Example 2/1 chamber 1 fills chambers 1 and 2 with .5. Neghbors are also weighted by .5 for these rings. Evaluation: While a few sectors in ME1/3 may be empty, most should have a few hits. Chambers should have approximately equal occupancy for physics runs Actions: if one or both tests fail and the histogram is red the expert must contact the CSC Trigger responsible.
	click(large), dblclick(back)

3.c EMTF Chambers Occupancy for Cosmics

EMTF Chamber Occupancy for Cosmics

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Description:A temperature plot of CSC LCT Occupancies as reported by the EMTF. The X axis scrolls through sectors (1-6), and CSC ID's (1-9 for stations 1-6 ). The Y axis has the stations (layers) of the Endcap, going from ME-4 to ME+4 with the outermost representing neighbor LCTs. This example shows how a good cosmic run should look like. For cosmics, the configuration may be bottom only, which would yield bottom sectors (#4,5, and 6) producing higher rates in those compare to the upper ones (#1,2,3). Evaluation: If the distribution look very differently than this, and in particular if there are completely sectors blanked out call the EMTF experts.

3.d RPC Hit Chambers Occupancy

CSC LCT Chamber Occupancy	click(large), dblclick(back)
Description: A temperature plot of RPC Hit Occupancies as reported by the EMTF. The X axis scrolls through sectors (1-6), and chambers including neighbors(N). The Y axis has the stations (lrings) of the Endcap. Evaluation: RPC Hits are only reported that fill in gaps in tracks caused by missing CSC LCTs. As such it is not uncommon to see high occupancy in the outside stations. Chambers move in phi so should have approximately even occupancy.
	click(large), dblclick(back)

4 a. EMTF Local Charged Tracks (LCTs)

CSC LCT Timing	click(large), dblclick(back)
Description: This is a two dimensional histogram that measures the LCT timing (in Bunch Crossings) per station and ring. Evaluation: The distribution should be centered at BX=0, but some periodicity (due to bunch spacing) is expected. Ring 1 substations should have higher occupancies than ring 2.
Description: A run with bad bunch crossing (BX) timing.	click(large), dblclick(back)

4 b. EMTF Local Charged Tracks (LCTs) for Cosmics

CSCTF LCTs for Cosmics	click(large), dblclick(back)
Description: This is a two dimensional histogram that measures the CSC LCT timing (in Bunch Crossings) per station and ring for cosmics. Evaluation: The distribution should be centered at x=0, but some periodicity (due to bunch spacing) is expected. For cosmics, ring 2 should have higher occupancies than ring 1.

4 c. CSC LCT BX

CSC LCT Timing in BX0	click(large), dblclick(back)
Description: This is a two dimensional histogram that shows the LCT occupancy for specific timings (in Bunch Crossings) per chamber and neighbors. Only BX0 plot shown here. Note, rings that only have 18 chambers are weighted by .5 and fill 2 bins. Example 2/1 chamber 1 fills chambers 1 and 2 with .5. Neghbors are also weighted by .5 for these rings. Evaluation: Distribution for BX0 should be higher than others (Neg2, Neg1, Pos1, Pos2). Should be even in chambers for physics runs.
	click(large), dblclick(back)

4 d. CSC LCT BX Fraction

CSC LCT Timing Fraction for BX0	click(large), dblclick(back)
Description: This is a two dimensional histogram that shows the percent of LCTs in a specific BX per chamber including neighbors. This shows BX0/(BXNeg2+BXNeg1+BX0+BXPos1+BXPos2) Evaluation: Distribution for BX0 should be near one for every chamber. Others should show below 1 percent of mistimed LCTs.
	click(large), dblclick(back)

5 a. EMTF Track Bunch Crossings (BX)

5 b. EMTF Bunch Crossings (BX) for Cosmics

EMTF Track Timing	click(large), dblclick(back)
Description: This is the total track timing reported by the EMTF for each sector on both endcaps. Evaluation: The distribution should be centered at BX=0 for all sectors.
Description: A run with bad bunch crossing (BX) timing.	click(large), dblclick(back)

EMTF BXs for Cosmics
Description: This is a two dimensional histogram that displays the collision muon track timing (Bunch Crossings) per sector. These tracks have been reconstructed from LCTs and this plot does not include tracks from Halo muons. Evaluation:	click(large), dblclick(back)

6 a. EMTF Track η

EMTF Track η	click(large), dblclick(back)
Description: A one dimensional histogram displaying the physical η distribution of EMTF tracks. Evaluation: Occupancy should increase as eta gets further from zero and approaches the beam. There may be a trough in the innermost regions if running in singles mode (What does that even mean?). Actions: If occupancy does not fit above description during collision runs, contact EMTF expert. Typical example of a problem is an asymmetric distribution.
Example of problematic (asymmetric) η distribution	click(large), dblclick(back)

6.b EMTF Track η for Cosmics

EMTF Track η for Cosmics	click(large), dblclick(back)
Description: Cosmic η values range from 1 to 2 in each endcap, with a peak occurring around 1.2. The endcaps should look roughly the same, but some variation is expected.

7 a. EMTF Track φ

EMTF Coincidence Track φ	click(large), dblclick(back)
Description: A one dimensional histogram displaying the physical φ distribution of EMTF coincidence tracks. Evaluation: This distribution should be flat, exceptions being made for small peaks/troughs due to dead chambers/masked channels (water leak here). Also, remember that these are zero suppressed. Actions: If occupancy does not fit above description, contact CSC expert.
EMTF Coincidence High Quality Track φ	click(large), dblclick(back)
Description: The same as above except there is a high quality requirement on the track. Evaluation: This distribution should look similar to the one above with less occupancy. Actions: If occupancy does not fit above description, contact CSC expert.

7 b. EMTF Track φ for Cosmics

EMTF Track φ for Cosmics	click(large), dblclick(back)
Description: A one dimensional histogram displaying the physical φ distribution of EMTF coincidence tracks. Evaluation: If running bottom-only cosmic triggers, phi region in top half of detector will be empty. Actions: If occupancy does not fit above description, contact CSC expert.

8 a. EMTF Track Pt

EMTF Track Pt	click(large), dblclick(back)
Description: A one dimensional histogram displaying the physical transverse momentum (Pt) distribution of EMTF coincidence tracks. Evaluation: This distribution should be falling, exceptions being made for small peaks/troughs due to dead chambers/masked channels. Actions: If occupancy does not fit above description, contact CSC expert.

8 b. EMTF Track Pt for Cosmics

EMTF Track Pt for Cosmics	click(large), dblclick(back)
Description: A one dimensional histogram displaying the physical transverse momentum (Pt) distribution in GeV of EMTF tracks. Evaluation: This distribution should heavily weighted towards 0 for cosmic muons. Actions: If occupancy does not fit above description, contact CSC expert.

9 a. EMTF Track Mode

EMTF Track Mode

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Description: A one dimensional histogram displaying the track mode. Mode is a binary encoding of the stations that contributed to a track, with station 1 corresponding to the most significant digit. For example, a mode of 5 is 0101, meaning only stations 2 and 4 contributed LCTs to make the track. Evaluation: This distribution will look different depending on the triggering configuration. If singles are enabled (low luminosity or cosmics) then mode 1, labeled singles will be highly peaked, followed by other coincidence track categories. For collision muons, we expect the highest occupancies to be ME1-2-3 (14) after singles, and smaller amounts of other triggers. Actions: If distribution does not fit description, contact CSC expert.

9 b. EMTF Track Mode for Cosmics

10. EMTF Quality

EMTF Quality	click(large), dblclick(back)
Description:* This is a histogram that displays the quality (0-15) recieved from the GMT. *Evaluation:

11. EMTF Quality vs Mode

EMTF Quality vs Mode	click(large), dblclick(back)
Description: This histogram plots the quality received from the GMT against the mode. Evaluation: The plot should be roughly linear.

12 a. EMTF Tracks Count

EMTF Tracks Count	click(large), dblclick(back)
Description: A one dimensional plot detailing the number of tracks per event record. [Is this going to be a semi-log plot?]. Evaluation: The distribution should be a sharply declining curve, with the majority of records having 0 tracks. However, there should still be a few occurrences each of 1,2, and 3 track event records. Actions: If distribution does not fit description, contact CSC expert.

12 b. EMTF Tracks Count for Cosmics

EMTF Tracks Count for Cosmics	click(large), dblclick(back)
Description: A one dimensional plot detailing the number of tracks found in each event record. [Is this going to be a semi-log plot?]. Evaluation: The distribution should be a sharply declining curve, with the majority of records having 0 tracks. However, there should still be a few occurrences each of 1,2, and 3 track event records. Actions: If occupancy does not fit above description, contact trigger shifter to verify that trigger key is supposed to what you think it is. If you were not wrong, contact CSC expert and tell them to contact shift L1 Docs.

13. CSC Strip

CSC Halfstrip	click(large), dblclick(back)
Description: This is a two dimensional histogram that displays the LCT half strip hits for each chamber in a particular ring and sector. Plots of ring 1 (X/1) should have 18 chambers, while the rest should have 36 chambers. Evaluation: There should be no strange patterns, no overflow, and no patches of empty bins (water leak here). However, the ME11 Chambers are separated into two sub chambers (ME11A and ME11B). Empty CFEBs are not a problem if the CSC group is aware of it. ME1/1a has 96 half strips, ME1/1b has 128 half strips, and all others have 160 half strips. Sometimes the CSC reports nonphysical hits outside of this range. Actions: If there are empty bins or a strange pattern, please contact a CSC expert.

14. CSC Wire

CSC Wire

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Description: This is a two dimensional histogram that displays the CSC LCT wire group hits for each chamber in one ring and one sector. Evaluation: There should be no strange patterns, no overflow, and no patches of empty bins. However, the two lines of low occupancy in this plot are due to the support beams inside the chamber and Empty CFEBs are not a problem if the CSC group is aware of it. ME1/1 has 48 wires, Non Me1/1 CSCs have 112 wires. Like strips, nonphysical wire hits outside of this range can be reported sometimes. Actions: If there are empty bins or a strange pattern, please contact a CSC expert.

15. EMTF 1D Strip Plots

EMTF 1D LCT Strip	click(large), dblclick(back)
Description: This is a histogram that displays the LCT half strip hits for each station/ring combination. The ME11 chambers are divided into two sub-chambers, ME11A and ME11B. The ME11A sub-chamber contains half strip numbers 129 through 224 and ME11B contains 1 through 129. Evaluation: This plot should have no large peaks or troughs.

16. EMTF 1D Wire Plots

EMTF 1D LCT Wire	click(large), dblclick(back)
Description: These hostograms show the 1D CSC LCT wire occupancy for each station/ring. Evaluation: In this plot, there should be larger occupancy for smaller numbers, there should be no large spikes and no holes.

17. MuonCand BX

MuonCand BX	click(large), dblclick(back)
Description: Shows hardware BX values

18. MuonCand Eta

MuonCand Eta	click(large), dblclick(back)
Description: This is a histogram that displays the hardware Eta values Evaluation:

19. MuonCand Phi

MuonCand Phi	click(large), dblclick(back)
Description: This histogram shows the unconverted hardware phi values. Values should range from -35 to 100, where -16 to 100 correspond to one sector and -35 to -16 represent overlapped phi from a neighboring sector.

20. MuonCand Pt

MuonCand Pt	click(large), dblclick(back)
Description: shows hardware pt values

21. MuonCand Quality

MuonCand Quality	click(large), dblclick(back)
Description: shows hardware quality values from the GMT

DQM Querying Webpage: csctiming.cern.ch

• Select which plots you would like to see and filter by Collisions or Cosmics runs. Run ranges are defined with colons, and separated by commas. For example, "355500:355600, 355650" will return runs between 355500 and 355600, as well as run 355650.

• After hitting Enter, you should see a results page with your chosen plots shown in columns. If a run in your given range fits the Collisions/Cosmics criterion and has a valid DQM Online file, it will be shown on screen. These plots are fully interactive

• Note - In order to use this website, you must be tunneled to P5 and have a SOCKS proxy set-up on your browser. Please see https://twiki.cern.ch/twiki/bin/viewauth/CMS/EMTFOnCallExpert#How_to_tunnel_to_P5 for instructions

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Further References

Legacy CSCTF DQM Description

EMTF DAQ Readout Format

CSC Electronics Conventions

Muon Track Finders and uGMT Conventions

-- SeanJiunWang - 2015-10-23