CSC update – my random summary

UCLA group meeting 1/4 CSC update – my random summary TMB 3.3v supply on peripheral crates –progress! CSC singles to be turned off • Were becoming a pain, e.g. bad timing for halo muons CLCT muonic timing to be implemented soon HLT (L3?) eff. Loss: Situation still unclear • ~4% according to some studies • Z cross-sections low relative to e+e- by >10% • for CSC/DT overlap and CSC-only regions CSC-TF charge still apparently wrong at GMT • Might be related to previous problem due to bad extrapolation of tracks? • Believed that CSC-TF “core firmware” has convention backwards, but don’t have support (?) for multiple core versions… plan is to : • Flip in “wrapper” and simultaneously in CSC-TF unpacker software. • Alex M. at CERN for 2 weeks, to work with Gian Piero and Laria on support for multiple versions…

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CSC update – my random summary.  TMB 3.3v supply on peripheral crates –progress!  CSC singles to be turned off Were becoming a pain, e.g. bad timing for halo muons  CLCT muonic timing to be implemented soon  HLT (L3?) eff. Loss:  Situation still unclear ~4% according to some studies - PowerPoint PPT Presentation

Transcript of CSC update – my random summary

UCLA group meeting 1/4

CSC update – my random summaryCSC update – my random summary

TMB 3.3v supply on peripheral crates –progress! CSC singles to be turned off

• Were becoming a pain, e.g. bad timing for halo muons CLCT muonic timing to be implemented soon HLT (L3?) eff. Loss:

Situation still unclear• ~4% according to some studies• Z cross-sections low relative to e+e- by >10%• for CSC/DT overlap and CSC-only regions

CSC-TF charge still apparently wrong at GMT• Might be related to previous problem due to bad extrapolation of

tracks?• Believed that CSC-TF “core firmware” has convention backwards, but

don’t have support (?) for multiple core versions… plan is to :• Flip in “wrapper” and simultaneously in CSC-TF unpacker software.• Alex M. at CERN for 2 weeks, to work with Gian Piero and Laria on

support for multiple versions…

UCLA group meeting 2/4

CSC nagging concerns ICSC nagging concerns I

• Neutron scan special run – when L high enough…• ALCT time bins

• Data compression? More early time bins?

• Changes to data structure• ALCT timing information from Chris DIGIs?• Mini-scope etc. in TMB• Allowed now for future CMSSW version 3.9 ??

• Improved documentation• General muon DPG detector performance article? Might

naturally break into 3 papers, but preferably not.• CSC synchronization article• Twikis, especially on timing, online changes• Storage and tracking of firmware versions ALCT, TMB, CCB,

MPC, DDU, DCC, CSCTF, VCC, etc.

UCLA group meeting 3/4

CSC nagging concerns IICSC nagging concerns II

• Triggers & datasets: where do all of these go?

• Single high-Pt triggers and datasets• Onia triggers and datasets• Single low-Pt (e.g. b physics) triggers and datasets• Halo muons• CSC activity triggers

• Everyone sees a “piece” of the puzzle…• Would like to assemble known information…

• Are we missing anything?• Need to improve DIGI information on timing, e.g. CSC

anode timing?