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K

A sequential linear least-squares algorithm which uses an initial estimate and incremental data to find an optimal solution. A variant of this algorithm is used as the mathematical foundation of the BaBar track fit. Code implementing the track f it is in package KalmanTrack.

Reference Link (http://www.slac.stanford.edu/BFROOT/www/Computing/Offline/Reconstruction/Tracking/trackDocu.html)

Kerberos is a network authentication protocol for client-server applications. It has been developed at MIT and uses secret-key cryptography to avoid transmission of cleartext passwords over the network. Kerberos is the authentication protocol used in AFS .

Reference Link (http://web.mit.edu/kerberos/www)

A kinematic fitter is a Beta operator. Given a tree of BtaCandidates with a set of kinematic constraints, it returns the best fit to the momenta/masses/energies of the candidates.

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

Vertexing/kinematic fitting is a mathematical procedure in which one uses physical constraints governing a particle interaction or decay to improve the measurements describing the process. Explicit formulations of these constraints are based on geometric intersections, mass, energy, momentum, etc.

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

A kink is a type of vertex with one charged track going in and one charged track going out. Examples are K -> mu+numu, K -> pi+pi0, and pi -> mu+numu, as well as bremsstrahlung, elastic scatter, and inelastic scatter processes with this topology.

Reference Link (http://babar-hn.slac.stanford.edu:5090/HyperNews/get/recoTracking/123.html)

A thermal fuse. A klixon is a temperature activated switch used to protect of machine components from overheating.

KoralB is a generator of tau-pairs.

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

Kumac is the language used to write PAW macros.

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

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Last significant update: 10-Sept-2002