Theoretical and Experimental Studies of Elementary Physics. Annual Technical Progress Report, November 1, 1992--October 31, 1993
Theoretical and Experimental Studies of Elementary Physics. Annual Technical Progress Report, November 1, 1992--October 31, 1993

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Published: 1993

Total Pages: 166

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The various components of the high-energy physics research program at the University of Rochester are presented. (I)Fixed-target experimentation at FNAL includes studies of direct photon production by p and [pi] on H, Be, and Cu, and hybrid mesons and other physics issues in Coulomb excitation at high energies. (II)The status of the GEM (Gammas, Electrons, and Muons) Experiment at the SSC is given. (III)The D-Zero experiment at FNAL is reviewed. (IV)Deep inelastic lepton--nucleon scattering experiments are summarized: electron scattering experiments at SLAC, FNAL neutrino quad triplet runs, FNAL neutrino sign selected experiments, and SDC cosmic ray test and test beam calibration. (V)Studies of nonlinear QED at SLAC concentrated on a study of QED at critical field strength in intense laser--high-energy electron collisions. (VI)Development work on the Collider Detector at Fermilab (CDF) emphasized the CDF silicon vertex detector, the end plug calorimeter, and the SDC tile/fiber calorimetry. (VII)The theoretical physics effort is sketched.

Research on Elementary Particle Physics, Task P
Research on Elementary Particle Physics, Task P

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Published: 1993

Total Pages: 14

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Continued progress has been made in isolating the variables needed to completely specify a quark or gluon jet, independent of the process in which it is created. We have evidence of a slow, but statistically significant, dependence on the sub-energy of the hard process in which the jet arises. Once this is taken into account, jets from ee− are consistent with those created in p{bar p}. Neural network jet identification studies win be based on this expanded set of variables. Work on the new type of Dirac equation for a relativistic oscillator was presented at the International Conference on High Energy Physics in Dallas, and will be published in the Proceedings of the Conference. Theoretical studies involving jet signals for theoretically predicted (but as yet undiscovered) particles are underway.

Scientific and Technical Aerospace Reports
Scientific and Technical Aerospace Reports

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Published: 1995

Total Pages: 456

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Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Research in Theoretical Physics. Annual Progress Report, April 1, 1992--March 31, 1993
Research in Theoretical Physics. Annual Progress Report, April 1, 1992--March 31, 1993

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Published: 1992

Total Pages: 52

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Progress made in the following areas is summarized: simulation of extensive air showers induced by interactions existing beyond the currently accepted ''Standard Model'' of elementary particle interactions; search for physics beyond the ''Standard Model'' in gluonic inclusive decays of heavy quarks; obtaining limits on the applicability of the special theory of relativity; an improved method of obtaining upper limits on the masses of primaries of extensive air showers associated with point sources in the sky. 8 figs., 1 tab., 73 refs.