CHICOS Analysiscut2
CTShower Code
Running analysiscut2 on old data:
New Showers
Current state of autoFit4:
- Cut on radius at 8 km.
- Cut on time at 25 us.
- After first reconstruction, deletes hits outside 2-sigma time errors.
(There is no requirement that the reconstruction match the intensity well.)
Repeats reconstruction and checks again. (Generally one iteration is all that
is required.)
- Forces 2-sigma errors to be at least 2us for the purpose of selecting hits.
- Ignores showers that have fewer than 3 match sites that reconstruct
within 2-sigma error bars. (Currently does not check whether the trigger
site reconstructs well.)
- *NEW* Requires 2 sites be fit within 2-sigma intensity error bars, with
intensity > 0.1 (so fitting 0 to 0 doesn't count).
- *NEW* Rejects showers if they are only Chiquita showers after bad sites
have been removed.
To get an idea of how this code performs, I ran it on the current set
of 120 Best Candidate showers. Breakdown of results:
- One Chiquita shower:
- 06-22-04 Sample rext included Westridge.
- 5 Showers which do not pass analysiscut2 (no change from previous version)
- 11-20-03 Previously missing; reason unknown.
- 10-19-03 Previously missing; reason unknown.
- 14 Showers which pass analysiscut2 but do not reconstruct with 3 matches within 2-sigma errors:
- 01-29-03 Was only ok because it ignores a healthy unhit site.
- 05-17-03 Had poor time fit.
- 06-14-03 Chiquita shower.
- 02-16-05 Sample rext had only 3 sites.
- 07-16-05 Had poor time fit.
- 08-09-05 Had poor time fit.
- 09-23-05 Westridge gets hit twice - need to remove one set of hits to get good fit.
- 11-16-05 Had poor time fit.
- 03-21-06 Loses 1 hit at 23 us. Fit to remaining sites not as good.
- 05-15-06 Had marginal time fit.
- 06-19-06 Had poor time fit.
- 08-24-06 Had poor time fit.
- 09-10-06 Fit with v2.35 was better.
- 10-03-06 Chiquita shower.
- 4 Showers which fail to meet the cut for intensity fit:
- 06-18-03
- 11-29-04
- 10-21-05
- 06-23-06
- 99 Showers which pass with good data.
Complete list of 99 Best Candidate showers:
I also ran this code on the Other Possible showers and
recovered 58.
