Source code (CVS tag: @) - Administrative privileges

Description

This package creates RecHits from Clusters in silicon strip detectors and matches RecHits in glued detectors.

Public interface

Modules

SiStripRecHitConverter Base EDProducer (configuration file: SiStripRecHitConverter.cfi). Hit position is calculated using a StripCPE . By default StripCPEfromTrackAngle is used and in the first iteration the track is assumed to be a straight line from the origin. The SiStripRecHitConverter produces three separate collection of hits on rphi, stereo and glued dets. Parameters : used ClusterProducer StripCPE and Matcher.
StripCPEESProducer Base cluster parameter estimator which calculates the local position and local error for the hit without track angle but including correction for the Lorentz shift (configuration file: StripCPE.cfi). Parameters : double TanLorentzAnglePerTesla (default= 0.032); bool UseMagneticField (default= true).
StripCPEfromTrackAngleESProducer Improved cluster parameter estimator from ORCA. (configuration file: StripCPEfromTrackAngle.cfi) Parameters : see StripCPEESProducer .
SiStripRecHitMatcherESProducer RecHit matcher (configuration file: SiStripRecHitMatcher.cfi). Hits on rphi and stereo dets are matched by projecting them on the glued det according to the track direction. In the first iteration the track is assumed to be a straight line from the origin. The error is calculated according to TN/95-170. Hits are matched if they are NSigmaInside*error far from detector bounds. Parameters : double NSigmaInside (default=3.).

Unit tests and examples

An example of configuration file is available in test/DigisToRecHit.cfg. An example for reading the strip RecHit collections is given in test/DigisToRecHitRead.cfg

Status and planned development

Stable. Missing feature: position estimator for large clusters and eta function correction.

Last updated: @ Author: computer-generated.