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Title: (High energy physics): Progress report

Technical Report ·
OSTI ID:7161963

During calendar year 1986 the high energy physics group at the University of Massachusetts continued its study of electron-positron annihilation reactions along with the TPC collaboration at the PEP facility of the Stanford Linear Accelerator Center (SLAC). During this year the TPC detector completed its 4th year of data collection including the 2nd year of data gathering with its full momentum resolution capabilities. In addition to assisting in the data collection, the UMass group has participated in hardware monitoring and improvement efforts, and has contributed to a number of diverse data analysis projects. The TPC collaboration has continued to publish numerous analysis results and new publications from the current data sample will continue for at least several years. Continued data taking has been approved at the PEP facility with two major improvements: the PEP luminosity will be increased by a factor of 4 or more, and the TPC will be further enhanced with the addition of a vertex detector. In addition to its continuing work with the TPC collaboration the UMass group has expanded its efforts to include a participation in the SLD project at the new linear collider (SLC) facility at SLAC. This expansion of effort has been facilitated by the addition of another UMass faculty member, Stanley Hertzbach, whose full year sabbatical, beginning this fall, will be spent working full time on the SLC project at SLAC. The UMass group has joined the ''beamline'' subgroup of the SLD project and is working on the design of the masking which is necessary near the interaction point to shield the detector from the intense halo of synchrotron radiation that accompanies the electron and positron beams.

Research Organization:
Massachusetts Univ., Amherst (USA). Dept. of Physics
DOE Contract Number:
AC02-85ER40194
OSTI ID:
7161963
Report Number(s):
DOE/ER/40194-2; ON: DE87003778
Country of Publication:
United States
Language:
English