File indexing completed on 2024-04-06 12:27:06
0001 <! Template File - Modify as required.>
0002 <! Use as an index to other html documents>
0003 <! References to local pages should be relative to this directory>
0004 <! This makes it easy for both users of the web project space and>
0005 <! any others who might simply look at html files directly in the source code.>
0006 <! e.g. href=page1.html or href=mysubdir/page2.html >
0007 <html>
0008 <body>
0009
0010 ancientMuonSeed: currently the default, which uses the same algorithms
0011 originally used in ORCA. The basic code structure is as follows:
0012
0013 MuonSeedGenerator:
0014 First, looks for "patterns", vectors or RecHits consistent with
0015 a muon. Then each pattern is turned into a seed by giving
0016 it a Trajectory, an energy and direction with errors.
0017
0018
0019 MuonOrcaPatternRecognition
0020 Looks for patterns by starting from the segments on
0021 outer layers, and trying to add segments from inner layers.
0022
0023 MuonSeedFinder
0024 Turns patterns into seeds. Essentially hands the work
0025 to MuonDTSeedFromRecHits, MuonOverlapSeedFromRecHits,
0026 or MuonCSCSeedFromRecHits.
0027
0028 MuonCSCSeedFromRecHits
0029 Gets the pT measurement from the phi difference
0030 between the two innermost segments,
0031 using the MuonSeedPtExtractor. Chooses one of the
0032 segments to use as direction, and overwrites the
0033 theta direction of the seed with a line to the
0034 origin.
0035
0036 MuonDTSeedFromRecHits
0037 The direction of single segments gives pretty
0038 good pT estimates, too, so we use a weighted
0039 pT of single segments and segment pairs for the pT.
0040
0041 MuonOverlapSeedFromRecHits
0042 These don't work as well as they should at the moment.
0043 In fact, we're seeing ghosts that consist of a good
0044 muon from a DT/DT seed or a CSC/CSC seed, and a bad
0045 DT/CSC seed.
0046
0047 </body>
0048 </html>
