This thesis consists of two independent parts; development of Cherenkov Ring Imaging Detector (GRID) system and analysis of high-statistics data of strange meson reactions from the LASS spectrometer. Part I: The CIUD system is devoted to charged particle identification in the SLAC Large Detector (SLD) to study e+ecollisions at ,/Z = mzo. By measuring the angles of emission of the Cherenkov phot...

Using hadronic 2° decays recorded by the SLD experiment at SLAC, we have studied the production of strange particles as a function of momentum. A high-purity sample of K ~ was tagged using Cherenkov Ring Imaging Detector(CRID). The #, A and K. were reconstructed in the K+ K-, pm and ~+ T – modes respectively, and CRID identification of K+ and p was used to obtain pure samples of@ and A. We have...

A preamplifier having 500 electrons noise (rms) has been developed for the detection and location of single electrons in a CRID detector at the SLD. A single channel contains preamp, RC-CR shaper, gain adjustment, driver, and calibration circuitry. Noise and linearity measurements are presented.

Wilson has designed and built particle identification systems in experiments such as the SLD experiment Cerenkov Ring Imaging Device (CRID); BaBar Detector of Internally Reflected Cherenkov light (DIRC). He has been the coordinator of the Particle ID subgroup of the American Linear Collider Physics Group, contributed to the Snowmass Resource Book, and has given numerous presentations on hadron ...

The Barrel CRID detector has been operating successfully at SLD for the past seven years. It is an important tool for SLD physics analyses. The long-term operational experience with this device is described. Invited talk at the Third International Workshop on Ring Imaging Cherenkov Detectors, Ein-Gedi, Dead Sea, Israel, November 15-20, 1998 * Work supported by The Department of Energy, contract...

Egypt's population is increasing and expected to exceed 120 million by 2050. Egypt constructed mega housing projects (M.H.P) cater with that escalation in population. The Egyptian strategy 2030 prioritized the construction of M.H.P. Contractors’ have struggled manage risks deliver successfully. aim paper develop a conceptual risk identification framework improve contractors’ practices during Eg...

We review recent Z physics results from SLD that use the Cherenkov Ring Imaging Detector for charged particle identi cation. The performance of the detector and likelihood method are described brie y. Several hadronization measurements are presented, including identi ed hadron production in events of di erent primary avors, leading hadron production, and new correlation studies sensitive to det...