* Analyzing 17F approach will require the use of a #define in addition to globals. Not ideal but it is what it is.
* No new clever tricks other than beam eloss being treated to account for more effects.
* Urgent pending alignments:
- geometry between sx3/qqq/pc to reflect vertexz in agreement with sourcez
- better dynamic range correction for a1c2 wire handover points
- need to resolve dE layer for different particle groups. No luck yet with just a *sinTheta
- p+a dataset seems to be getting closer and closer to fully fleshed out
* Do not use this commit for future analyses. Pushed under sleep deprivation and fatigue.
- find sx3 events, gainmatch them, calibrate, make a vector of these called SX3_Events
- same step for QQQ, call it QQQ_Events
- find anodeWire clusters, cathodeWire clusters, make vectors of these
- make PC_Events from wire clusters, save 'anode only' and 'cathode only' cases just in case
* since PC_Events, QQQ_Events, SX3_Events are all STL containers, we can pass them to functions that perform modular analyses
* In this commit:
- 4-wire offsets used, along with reliably figuring out phi-offset between QQQ/SX3/PC. We are close, except for some QQQ fine-tuning due to their angular extent not being 90 deg
- the pczfix step now makes sense, 1-wire calculations also loosely match between guess and pcz
- the nonlinearity correction/dynamic range fix is just adding to the resolution
- p(a,a) data analysable by QQQ alphas show good kinematics, when doing the following gates:
> A1C1 event pczs dithered, A1C2 events made into pczfix
> phicut (45 deg) to gate out p+a correlations, SiE < 5 MeV && PCa > 6000 to select the alpha blob in p+a
> Some selection on VertexReconXY so that the Perp() of the vertex is < 6mm
> Selection on VertexReconZ so that z is in [-173.6, 100]. Fine alignment pending
- Doing all the above gives reasonable p(a,a) kinematic curves with good statistics, Ex peaked at -0.7 MeV, close but not perfect
- The above steps, when repeated with oneWire anode events stored in aClusters also yields a very reasonable kinematic locus, and Ex value, even more statistics
- Not sure how much of this is autocorrelation stuff but
> VertexReconZ vs Ef in QQQ (Ef is eloss-fixed alpha energy using path length) shows sensible trends.
- Why Ex is not centered around zero might need more thought.
- VertexReconXY is suspiciously well-centered, might need some more thought as well.
* Some infrastructure that allows processing of 17F data is also in the pipeline now.
* One fairly important bug got fixed which was ignoring qqq.id[0] when making QQQ_Events
* Ideally, follow-ups to the above done on 27Al, 17F will make their own functions that are then called separately using booleans at the very top.
* The fate of proton dE signals is out to jury.
1) Environment variables allowing flip and offset of anode wires
2) Environment variables allowing for selection of runs' start and stop time positions, to help with phi scanning runs
3) *fix histograms defined that incorporate step-ladder corrections applied to pcz, hard-coded currently in sx3cal/sx3z_vs_pcz/testmodel.h. Will need a better home in the future
4) EXFit2.C has the capability to now gainmatch all sx3 pads, and position along strip is still found from the central three pad edges. Treatment for (backE-missingfrontE) is being considered.
Sudarsan Balakrishnan
Vignesh Sitaraman