Prototype results of a high resolution vertex drift chamber for the Mark II SLC upgrade detector

Drift Chamber Vertex Detectors for Slc/lep*

New Drift Chamber for - the Mark Ii

A new cylindrical drift chamber is being constructed for the Mark lI detector for use at the new SLAC Linear Collider. The design of the new chamber is based on a multi-sensewire cell of the jet-chamber type. In addition to driitime measure men@ pulse height measurements from the sense wires will provide electron-hadron separation by dE/dz. The design and construction of the chamber, tests of p...

Recent Results from the Mark Ii Detector

Recent results from the Mark II Detector at SPEAR are presented. These include measurements of the decays r--to-vr and T-+K*-(890)~,, observation of direct photons at the $, inclusive proton and A production and measurements of charmed baryon and charmed meson decays.

Micro Drift Chamber as a precise vertex detector for the DIRAC experiment

A possible implementation of the Micro Drift Chamber (MDC) technique as a high resolution vertex detector in the upstream part of the DIRAC spectrometer was investigated in this paper. Simulations of different MDC layout were performed with the help of GARFIELD package. Based on the results of simulation the optimal chamber geometry and the gas mixture were selected. One cell prototype was prod...

BaBar Level-1 Drift Chamber Trigger Upgrade

submitted to the Xth VCI 2004 30 November 2003 This BaBar L1 DCT upgrade is essential for improving L1 trigger background rejection in preparation for the expected increase in PEP-II luminosity. A large fraction of the current L1 trigger background come from interactions of beam particles with beam line components at ∼ ±20 cm from the interaction point (IP), along the beam direction (z axis). T...