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Experimental study of weak interactions by precision measurement of rare kaon decay, Task B

Description: This report discusses research on the following decay schemes and parameters: {epsilon}{prime}/{epsilon}; {Phi}{sub 00} {minus} {Phi}+{minus}; K{sub L} {yields} {pi}{sup 0}e{sup +}e{sup {minus}}; K{sub L} {yields} {pi}{sup 0}{delta}{delta}; {pi}{sup 0} {yields} e{sup +}e{sup {minus}}; K{sub LS} {yields} {pi}{sup +}{pi}{sup {minus}}{delta}; K{sub e4}; K{sub e3}; K{sub L} {yields} 3{pi}{sup 0} decay constant.
Date: April 1, 1992
Creator: Winston, Roland
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Precision measurement of the direct CP violation parameter. var epsilon. prime /. var epsilon. via the four K yields 2. pi. decay modes and a high sensitivity search for CP violating rare K sub L decays, Task J

Description: This report discusses the progress on the measurement of the direct CP violation parameter {var epsilon}{prime}/{var epsilon} and the rare KL decay. The progress has been as follows: (A) results from the complete E731 data set which was collected in the 1987/88 fixed target run; preparations for and the taking of the data for (B) E773 (CPT symmetry test) and (C) E799 (rare decay study); and finally (D) R D for a new detector to further study {var epsilon}{prime}/{var epsilon} and rate decays.
Date: April 1, 1992
Creator: Wah, Yau W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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(Research in the theory of condensed matter and elementary particles. ) Progress report

Description: Progress is summarized in these areas: a new formulation of two dimensional critical phenomena and string theory, supersymmetric critical phenomena and string compactification, conformal field theory on orbifolds, Gaussian models with twisted boundary conditions, modular invariance and supersymmetric critical phenomena, critical indices, conformal invariance, and current algebra, renormalization group fixed points and the string equation of motion, fermionic string field theory, N = 2 super Rie… more
Date: January 1, 1986
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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(Topics in theoretical physics). Progress report

Description: Progress is reported in these areas: supersymmetry and conformal invariance and new structures in two dimensional critical phenomena; spinor fields and new applications and techniques for studying Ising model correlation factors; superstring compactification and high energy physics applications for novel two dimensional critical points; ordered and disordered spatial structure in dynamical systems; and fermion-boson mass relations in BCS type theories. Research is proposed in covariant formulat… more
Date: January 1, 1985
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Theoretical high energy physics research at the University of Chicago, Task A

Description: This report discusses research conducted at the University of Chicago in theoretical high energy physics. Some of the areas included in this report are: cp violation and cabibbo-kobayashi-maskawa matrix; radiative corrections and electroweak observables; heavy quark symmetry; heavy meson spectroscopy; hadronic string theory; composite models of quarks and leptons; and pedagogical effects. (LSP)
Date: April 1, 1992
Creator: Rosner, J.L.; Martinec, E.J. & Sachs, R.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fundamentals and techniques of nonimaging optics for solar energy concentration. Final report

Description: Nonimaging optics is a new discipline with techniques, formalism and objectives quite distinct from the traditional methods of focusing optics. These new systems achieve or closely approach the maximum concentration permitted by the Second Law of Thermodynamics for a given angular acceptance and are often called ideal. Application of these new principles to solar energy over the past seven years has led to the invention of a new class of solar concentrators, the most well known version of which… more
Date: May 20, 1980
Creator: Winston, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Basic studies of atomic dynamics. Progress report, July 1, 1982-August 31, 1983

Description: The observed but puzzling stability of resonant states a stride potential ridges is shown to reflect a general self-focussing property of convergent waves. An approach to the solution of nonseparable wave equations is introduced which utilizes their separability in asymptotic limits. Progress is outlined in describing the properties of N-electron atoms in highly condensed states.
Date: August 31, 1983
Creator: Fano, U.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research in the theory of condensed matter and elementary particles. Progress report

Description: Brief progress summaries are given on the dynamics of Polyakov's string, the problem of putting chiral fermions on the lattice, order and disorder that arises in two-dimensional systems with incommensurate phases, gauge theory in 1 + 1 dimension with quarks being treated as classical particles, the finite temperature deconfining transition in the 2 + 1 dimension compact U(1) lattice gauge theory (the Polyakov model), the Monte Carlo renormalization group treatment of the O(3) nonlinear sigma mo… more
Date: January 1, 1981
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Chemical Methods for the Production of Proteins

Description: The goal of this research program was to develop improved methods for chemical peptide and protein synthesis, and to apply these methods to the total synthesis of small proteins (<80 amino acids) & integral membrane proteins.
Date: September 15, 2008
Creator: Kent, Stephen B. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Double beta decay of U-238

Description: During the last period, two samples of 33 yr old uranyl nitrate have been examined for the accumulation of Pu-238 formed as a result of double beta decay. The 2.5 kg sample has led only to an upper limit of 6 {times} 10{sup 20} yr. The 8.5 kg sample has produced positive results corresponding to a half-life of 2 {times} 10{sup 21 } yr. The possibility of contaminating nuclear reactions has been carefully examined and eliminated. The possibility that contamination may have been introduced by the… more
Date: November 1, 1990
Creator: Turkevich, A. & Economou, T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research in the theory of condensed matter and elementary particles. (Progress report)

Description: The proposed research is concerned with problems occupying the common ground between quantum field theory and statistical mechanics. The topics under investigation include: superconformal field theory in two dimensions, its relationship to two dimensional critical phenomena and its applications in string theory; the covariant formulation of the superstring theory; formation of large-scale structures and spatial chaos in dynamical systems; fermion-boson mass relations in BCS type theories; and p… more
Date: January 1, 1985
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electron microscope studies

Description: This year our laboratory has continued to make progress in the design of electron-optical systems, in the study of structure-function relationships of large multi-subunit proteins, in the development of new image processing software and in achieving a workable sub-angstrom STEM. We present an algebraic approach to the symmetrical Einzel (unipotential) lens wherein we simplify the analysis by specifying a field shape that meets some preferred set of boundary or other conditions and then calculat… more
Date: June 1, 1991
Creator: Crewe, A.V. & Kapp, O.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Instrumentation and quantitative methods of evaluation: Progress report for the period January 15, 1987 through September 14, 1987

Description: This report describes various research projects involving NMR imaging techniques. Included are brief descriptions of improvements to existing equipment, modifications in computer codes controlling image processing, and methods for improving the accuracy of diagnostic techniques. (TEM)
Date: September 1, 1987
Creator: Beck, R.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research in the theory of condensed matter and elementary particles: Final report, September 1, 1984-November 30, 1987

Description: Progress is reported in the field of condensed matter physics in the area of two-dimensional critical phenomena, specifically results allowing complete classification of all possible two-dimensional critical phenomena in a certain domain. In the field of high energy physics, progress is reported in string and conformal field theory, and supersymmetry.
Date: April 1, 1988
Creator: Friedan, D.; Kadanoff, L.; Nambu, Y. & Shenker, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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[Analysis of DNA damage and mutations induced by radon daughter products]

Description: In order to understand the genetic and somatic risks associated with exposure to radon and its daughter products, it is important to characterize those lesions that lead to mutation induction and carcinogenesis. The effect of exposure to the radon daughter (212)Bi has been analyzed in 4 CHO cell lines, CHO-KL, xrs-5, AA8 and EM9. These cell lines have different radiation sensitivities and different abilities to rejoin radiation-induced DNA strand breaks. Three endpoints have been examined in th… more
Date: January 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Coal anion structure and chemistry of coal alkylation. Final report, March 1, 1979-February 29, 1980

Description: In accord with Task 1, some ether cleavage reactions were carried out in two different media - potassium/naphthalene/tetrahydrofuran and potassium/ ammonia - so that the merits and demerits of the two methods could be compared. Preliminary results suggest that both systems yield the same products, and that the ammonia medium is more convenient to work with, because of the absence of by-products such as reduced naphthalenes and tetralin. Dialkyl ethers were found to be least reactive compounds w… more
Date: January 1, 1980
Creator: Stock, L.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Task D, Participation in high energy physics

Description: This grant was initiated in December of 1989. My request for DOE funds (July 7, 1989) listed three activities which would require support from DOE. These were communication of HEP and Basic Research activities via lectures, articles, TV, etc., science education activities and participation in E789, a fixed-target research on beauty physics at Fermilab. These activities are discussed in this report.
Date: September 1, 1990
Creator: Lederman, L.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Depth to and Concentrations of Water in Large Bodies of Silicic Magma. Progress Report, July 1, 1982-June 30, 1983

Description: Large bodies of silicic magma are potential sources of geothermal energy and ore. They also pose threats of catastrophic eruptions. The depths of such bodies are related to their economic potential and probably to their eruption mechanisms. The concentrations of water in the magmas are important for their eruptive and dynamical behavior and for the development of ores. Estimates of viscosity and density of melt require knowledge of concentration of water. The concentration of water in melt befo… more
Date: March 3, 1983
Creator: Anderson, A. T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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