Triathlon:

Two of us survived the grueling 8am race.... 800yard swim, 25km bike, 5km run.

b-ID:

An updated certification of the SVT is under review, with much reduced systematics:

~2% for the b-jet efficiency, ~5% for the light-jet efficiency.

The Neural Net Tagger is being reviewed. This promises great improvements in b-tagging:

~25% better b-jet efficiency, or ~70% lower light-jet efficiency.

Similar systematic errors as the SVT.

Stopped Gluinos:

I've made a rough approximation of some stopped-gluino Monte Carlo:

Pythia Z(->nunu)+jets -> GEANT3 -> D0Sim -> D0Reco

(See talk in 8/25/05 NP meeting for details.)

Moved interaction point to (0+-20, 120+-20, 0+-100) cm.

Hacked MCgetEvent.cpp to filter out particles
from the beam and underlying event.

at standard
interaction
point

at interaction
point inside
calorimeters

A-layer punchthrough

gluino-jet
cluster

Very different looking than
muon-induced showers!

Andy Haas

2004-07-07T15:59:13