Difference between revisions of "Analysis Launch Plugin Requirements"
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** The kinematic fit is performed as soon as the fit results (e.g. 4-vectors, confidence level, etc.) are requested. | ** The kinematic fit is performed as soon as the fit results (e.g. 4-vectors, confidence level, etc.) are requested. | ||
− | === | + | == Recommendations == |
+ | === Loose PID cuts === | ||
* These still let in a lot of background, but cut ~no signal | * These still let in a lot of background, but cut ~no signal | ||
* Proton: | * Proton: |
Revision as of 18:44, 18 July 2016
To make sure everything works, and to save memory and speed up the analyses, the following restrictions are placed:
Contents
Example
- An example plugin that meets all of the requirements: Paul's γp→K+Λ
Requirements
General Requirements:
- Plugins must be checked into your home area in: https://halldsvn.jlab.org/repos/trunk/home/
- Plugins and DReactions must have unique names: No one else can use the same names (we can't run 4 plugins named "omega"), so try to do something unique (e.g. "omega_pmatt").
Memory Requirements
- Maximum of 10 DReactions per user.
- Don’t use a ton of memory (e.g. many DHistogramActions).
Cut Requirements
- All analyses (i.e. DReactions) must use an EventStore skim.
- All channels must have at least the following cuts:
- Pre-combo loose mass cuts around peak
- Loose PID cuts (each particle & detector)
- Kinematic fit converges (if any).
- These cuts must be placed before the kinematic fit is performed (except kinfit confidence level, of course).
- The kinematic fit is performed as soon as the fit results (e.g. 4-vectors, confidence level, etc.) are requested.
Recommendations
Loose PID cuts
- These still let in a lot of background, but cut ~no signal
- Proton:
- TOF: +/- 2.5 ns
- BCAL: +/- 2.5 ns
- FCAL: +/- 3 ns
- π+, π-:
- TOF: +/- 2 ns (Wide to accept muons from pion decays)
- BCAL: +/- 2.5 ns
- FCAL: +/- 3 ns
- K+, K-:
- TOF: +/- 0.75 ns
- BCAL: +/- 2.5 ns
- FCAL: +/- 3 ns
- γ:
- BCAL: +/- 6 ns
- FCAL: +/- 10 ns