STAR HBT PWG - MDC3 (enough TLA's for ya?)

Also see: STAR Mock Data Challenges and STAR-wide MDC3 page

Results-- Click here for the MDC3 STAR HBT Matrix

early ideas MDC3 on vent production (old, marginally useful)
Multiplicities required Lanny's correlator code / implementation of alternate correlation models
Correlation functions generated by StHbt from MDC3 pre-Gstar files
Event Production for MDC3
K0-K0 correlations in pre-Gstar events, as seen by StHbt - Helen Caines

General goals for MDC3

In MDC3, we will be performing several mock analyses that hopefully will give us an idea of what more needs to be done before data comes. These include:

"standard" pi-pi (like and unlike sign)
- pull out multiplicity dependence of Radii
- how much momentum resolution hurts
- track-splitting (Testing of Randy's algorithm)
- can we reconstruct big sources?
- is our Coulomb-correction algorithm sufficient?
event-by-event HBT
- At what multiplicity does it break down?
- tag tools
- tests of various fitting techniques, including global fit of piplus-piplus, piminus-piminus, piplus-piminus
3-particle correlation analysis
- test code which being implemented into StHbt
- what signals are mocked up by 2-particle correlations (which is all what is in the events) + detector effects
- how many events can be analyzed in lifetime of the universe?
charged kaon and proton-proton HBT
- largely test of statistics/PID
proton-Lambda and K0-K0 HBT
- can we extract these interesting signal with exiting cuts and expected statistics?
phi, K*, and other resonances
- better understanding of efficiency/acceptance for various strictness cuts
- generation of 1D and 2D spectra with StHbt

There are also issues of general infrastructure:

We would like to run in conjuntion with other PWGs (EbyE/flow and strangeness) in a PWG-Maker chain, to generate uDSTs. Question is how well does this work in a large scale?
For some analyses, we would like to generate HBT uDSTs (either ASCII or binary) and analyze them with the standalone StHbt. Is this practical/desirable?
How well does the track-split removal algorithm of Randy Wells clean up the signal for HBT? Is it neccessary/sufficient?
In general, what types of pairwise cuts must we implement? (Including issues of merging/splitting/parent-daughter incest in track-V0 and V0-V0 correlations.)
Test of tag submission and retrieval (event-by-event HBT)
Do we have sufficient information in our StHbtEvent structures to perform adequate cuts and do analysis?

Mike Lisa

Last modified: Thu Mar 30 22:16:39 EST 2000