Investigation of physical structures and interactions at high energy

Technical Report · Tue Jan 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/6438175· OSTI ID:6438175

Anderson, E. W.

Contract AC02-85ER40193 supports the investigation of fundamental structures and interactions at high energy by the Iowa State University Alpha HEP Group. Three major activities constitute the present focus of our research. Experiment E-735, performed at the Fermilab Tevatron Collider, is a search for a deconfined quark-gluon plasma phase of hadronic matter predicted to occur when temperatures of 240 MeV are achieved. The primary data were obtained in 1988--1989, from these data the collaboration is analyzing the charged particle multiplicity and transverse momentum distributions of the produced secondaries. These measurements are regarded on theoretical grounds to be sensitive indicators of the formation of a high-temperature plasma. The TPC detector, installed in the PEP ring at SLAC, has accumulated about 60,000 hadronic events at 29 GeV center-of-mass energy. Several thousand events have high-precision vertex chamber measurements. Physics analysis of charmed quark events, in addition to a measurement of the QCD strong coupling, are in progress. Our identification and reconstruction of D{sup o}, D*, and D{sub s}, charmed mesons will be useful for subsequent B meson studies in the TPC detector. The SSC liquid argon major subsystem tests at BNL and studies of gauge boson identification and reconstruction for large SSC detectors are in progress. Several crucial problems related to calorimeter geometries, coil geometries, and discrimination methods in full SSC events have been solved, and work is in progress on a one million event test of WW scattering capability up to 2 TeV. Our participation in the subsystem proposal involves construction of the module, data-taking at the AGS, and data analysis.

• Research Organization: Iowa State Univ. of Science and Technology, Ames, IA (USA). Dept. of Physics
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC02-85ER40193
• OSTI ID: 6438175
• Report Number(s): DOE/ER/40193-4; ON: DE91005582
• Country of Publication: United States
• Language: English

Related Subjects

645100* -- High Energy Physics-- Particle Interactions & Properties-Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATORS
B MESONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
CYCLIC ACCELERATORS
D MESONS
DOCUMENT TYPES
ELEMENTARY PARTICLES
FERMILAB TEVATRON
HADRONS
INTERACTIONS
LINEAR MOMENTUM
MESONS
MULTIPLICITY
PARTICLE INTERACTIONS
PARTICLE STRUCTURE
PROGRESS REPORT
PSEUDOSCALAR MESONS
QUARK-GLUON INTERACTIONS
STORAGE RINGS
SUPERCONDUCTING SUPER COLLIDER
SYNCHROTRONS
TIME PROJECTION CHAMBERS
TRANSVERSE MOMENTUM