MVD analysis to do list

MVD analysis "to do" list

The following list of people and jobs was first created in October 1997. Periodically, I remove completed jobs from the list and add new jobs. The previous version of this list is available here. I changed it from a list of "software" jobs to a list of "analysis" jobs in August 2003.

The links from the items in the "jobs to be done" column give more details (in some cases) about the problems.

Item number Job to be done Who is doing is? Status
1 Improve calibrations, both pedestals and "mip" peaks.
Pedestals from calibration runs?
Pedestals from later runs?
better mip peaks Sangsu, Yonsei Working
2 Verification of the calibration and analysis chain.
a) team at LANL should run the code and attempt to themselves calibrate the exact same run that SangSu is using.
b) team makes dN/deta from that run and compares with SangSu's.
c) team at LANL should select another run and calibrate it, making min bias dN/deta from it too and comparing to the one from step (b).
d) make dN/deta separately for different vertex bins Sangsu, Matt, Jane working
3 Verification of the dN/deta scale Jane Mostly done
4 Understanding of outstanding problems/questions in analysis
a) Why does the multiplicity distribution have a long tail. Possibly solved by item 1.
b) Why is there a "kink" in the pad dN/deta at eta = -2.5 (and maybe +2.5)
c) Verify mapping (i.e. translation of packet number to physical location)
d) Verification of geometry (I think the pad detector geometry is oversimplified in the analysis -- not sure if it matters)
e) Are dead channels dealt with correctly? Sangsu, probably LANL working on some of this
5 More work on dN/deta algorithm from strips. Sangsu working
6 Simulations:
a) Does the analysis correctly reconstruct dN/deta input?
b) magnitude (fraction of signal) of background (vs. eta, for pads and strips, etc)
c) main source of background in the strips? in the strips? John working
7 start reporting to the PWG
a) Sangsu to report August 29
b) The LANL team should make a plot of the results of steps
2(b) and 2(c) to demonstrate reproducibility
c) report on the result of step 2(d).
d) decide where to truncate pad results in eta. Sangsu initially,
others later working
8 Switch from "preco" to "Fun4All" (old to new framework) Jane working
9 dN/deta vs. centrality (shape and magnitude)
a) implement centrality selection as done by Sean+Sasha for the preliminary R_dA results
b) check strips vs. pads for each centrality bin. decide how best to make a combined dN/deta distribution
c) make a plot with all four distributions together
d) Use the Glauber calculation in the centralty analysis note to predict where the eta distribution should peak for each bin.
e) compare to predictions from Kopeliovich and Kharzeev Matt (4a), others working on some of this
10 Add dN/deta from BBC to the results of 5 to extend eta range. Sasha Milov volunteered to work on calibration to get absolute yield from BBC. Probably the best strategy is to add this when Matt gets back to Stony Brook. Sasha M, Matt not sure

updated August 19, 2003
John P. Sullivan
sullivan@lanl.gov

Item number	Job to be done	Who is doing is?	Status
1	Improve calibrations, both pedestals and "mip" peaks. Pedestals from calibration runs? Pedestals from later runs? better mip peaks	Sangsu, Yonsei	Working
2	Verification of the calibration and analysis chain. a) team at LANL should run the code and attempt to themselves calibrate the exact same run that SangSu is using. b) team makes dN/deta from that run and compares with SangSu's. c) team at LANL should select another run and calibrate it, making min bias dN/deta from it too and comparing to the one from step (b). d) make dN/deta separately for different vertex bins	Sangsu, Matt, Jane	working
3	Verification of the dN/deta scale	Jane	Mostly done
4	Understanding of outstanding problems/questions in analysis a) Why does the multiplicity distribution have a long tail. Possibly solved by item 1. b) Why is there a "kink" in the pad dN/deta at eta = -2.5 (and maybe +2.5) c) Verify mapping (i.e. translation of packet number to physical location) d) Verification of geometry (I think the pad detector geometry is oversimplified in the analysis -- not sure if it matters) e) Are dead channels dealt with correctly?	Sangsu, probably LANL	working on some of this
5	More work on dN/deta algorithm from strips.	Sangsu	working
6	Simulations: a) Does the analysis correctly reconstruct dN/deta input? b) magnitude (fraction of signal) of background (vs. eta, for pads and strips, etc) c) main source of background in the strips? in the strips?	John	working
7	start reporting to the PWG a) Sangsu to report August 29 b) The LANL team should make a plot of the results of steps 2(b) and 2(c) to demonstrate reproducibility c) report on the result of step 2(d). d) decide where to truncate pad results in eta.	Sangsu initially, others later	working
8	Switch from "preco" to "Fun4All" (old to new framework)	Jane	working
9	dN/deta vs. centrality (shape and magnitude) a) implement centrality selection as done by Sean+Sasha for the preliminary R_dA results b) check strips vs. pads for each centrality bin. decide how best to make a combined dN/deta distribution c) make a plot with all four distributions together d) Use the Glauber calculation in the centralty analysis note to predict where the eta distribution should peak for each bin. e) compare to predictions from Kopeliovich and Kharzeev	Matt (4a), others	working on some of this
10	Add dN/deta from BBC to the results of 5 to extend eta range. Sasha Milov volunteered to work on calibration to get absolute yield from BBC. Probably the best strategy is to add this when Matt gets back to Stony Brook.	Sasha M, Matt	not sure