Elementary particles and high energy phenomena. Progress report
During the past year, the MAC collaboration continued accumulating data at PEP and published several results. Included in the results are the lifetime measurement of b quarks; the observation of electroweak interference effects using Bhabba, ..mu mu.., and tau tau scattering, a precise measurement of R, observations of direct photons, and a study of energy-energy correlations in multihadron events. For MkII/SLC, a vertex detector system chamber using proportional drift tubes is under construction.The Tagged Photon Spectrometer group has published results and is preparing a new experiment, E-691, to be run in January, 1985. The published results of E-516 include a study of J/psi photoproduction and a study of D/sup 0/ ..-->.. K/sup -/ ..pi../sup +/..pi../sup 0/. An analysis of ..lambda../sup 0/ anti ..lambda../sup 0/, and K/sup 0/ inclusive photoproduction has recently been completed and is being prepared for publication. Design work and preparation for prototype development has begun on the end cap drift chambers for SLD. Experiment E-400, Hadronic Charm Production, accumulated data during the first two SAVER runs at Fermilab and is now involved in data analysis. E-687, a photoproduction experiment at Fermilab, has begun construction of an electromagnetic calorimeter to measure the energy and postion photons and electrons. Novel forms of supersymmetry breaking were investigated. The anomaly and its relation to the construction of finite supersymmetric theories was studied. A long project was completed on the relation between the gluon condensate in QCD and on effective gluon mass. A series of papers was published on numerical studies of quantum Hamiltonian field theories. Studies of the confinement-deconfinement phase transition in QCD at high temperature were conducted, with applications both to the early universe and to the phenomenogy of ultrarelativistic nucleus-nucleus collisons.
- Research Organization:
- Colorado Univ., Boulder (USA)
- DOE Contract Number:
- AC02-81ER40025
- OSTI ID:
- 6434055
- Report Number(s):
- DOE/ER/40025-13; ON: DE85002095
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
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HYPERONS
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MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
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MULTIWIRE PROPORTIONAL CHAMBERS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
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PHYSICS
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POSTULATED PARTICLES
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
PSI RESONANCES
QUARK MODEL
RADIATION DETECTORS
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STRANGE PARTICLES
SYMMETRY
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