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Hazardous Atmosphere Detector (HAD)

Device used to detect flammable gas mixtures.


Heating Ventilation and Air Conditioning (HVAC)

The group at SLAC responsible for heating and cooling. Among other tasks, they maintain the water plant on the IR2 utility pad.


Hep3Vector

Class in CLHEP library representing a real-valued 3 dimensional vector.

Reference Link (http://babar-hn.slac.stanford.edu:5090/cgi-bin/internal/cvsweb.cgi/CLHEP/Vector/ThreeVector.h)


Hep3Vector

This class is a part of CLHEP - a Class Library for High Energy Physics. Hep3Vector is a general 3-vector class defining vectors in three dimensions using HepDouble components. Rotations of these vectors are performed by multiplying with an object of the HepRotation class. More information about structure of the class can be found in any release distribution in file CLHEP/Vector/ThreeVector.h. For release analisys-12a the full path is /afs/slac.stanford.edu/g/babar/dist/releases/analysis-12


HepALists

Lists, specifically HepALists, of BtaCandidates are stored within an event (type AbsEvent). Possible lists in an event may be of charged tracks or of muon candidates.

Reference Link (http://www.slac.stanford.edu/BFROOT/www/doc/workbook/beta1/beta1.html)


hepic

The High Energy Physics Information Center, better known as HEPIC, is an information server that catalogs various HEP Resources throughout the world. HEPIC exists, to aid the HEP Researcher in locating information quickly and efficiently. HEPIC can be found at www.hep.net, and is supported by the Fermilab Computing Division. It provides information ranging from Events (Conferences, Schools, Workshops), Experiments, General Phonebooks etc.

Reference Link (http://www.hep.net)


HepLorentzVector

HepLorentzVector is a class in CLHEP lib. It is a Lorentz vector consisting of Hep3Vector and double components. Lorentz transformations (rotations and boosts) of these vectors are perfomed by multiplying with objects of the HepLorentzRotation class.


HepLorentzVector

C++ class of objects in CLHEP library, representing 4-vectors and all the operations and transformations applicable to them.

Reference Link (http://wwwasd.web.cern.ch/wwwasd/lhc++/clhep/manual/RefGuide/Vector/include/LorentzVector_h.html)


HepLorentzVector

Class in CLHEP/Vector representing 4-vectors.

To add an entry to the Glossary use the BaBar Glossary Submission Form.


All comments, requests, and corrections are welcome. Send them by e-mail.


Project Lead: Ray Cowan
Project Supervision: Douglas Smith (SLAC Computing Services)

Last significant update: 10-Sept-2002