(r3) RichPID < LHCb

LHCb Web>LHCbComputing>RichSoftware>RichSoftwareDoc>RichEventModel>RichPID (revision 3) (raw view)~~EditAttachPDF~~

---++!! <nox>RichPID 

%TOC%

---+++ Class Summary

Contains the Particle Identification information for the RICH detectors. 

Data members are :-

   * A smart reference to the associated [[TrackTrack][track]] object. 
Currently some gymnastics are performed to allow this to be either a TrStoredTrack or a TrgTrack. Eventually, this will be simplified when only one unified [[TrackTrack][track]] object is in use.

   * A bit packed history code. Contains some information on how the PID result was produced (For example, which radiators were available for the associated track, and which algorithm was used).

   * A vector of floats containing the delta log likelihood values (defined to be with respect to the best hypothesis) for each of the 5 mass hypotheses. Users are discouraged from accessing this vector directly but instead should use the accessor methods provided.

   * The best mass hypothesis. Internally it is stored as an integer but is converted into an enumeration in the acces methods. 

---+++ Doxygen Documentation

http://lhcb-release-area.web.cern.ch/LHCb-release-area/LHCB/doc/html/class_rich_p_i_d.html

Topic revision: r3 - 2005-07-15 - ChristopherRJones

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