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Controlled-source electromagnetic survey at Soda Lakes geothermal area, Nevada

Description: The EM-60 system, a large-moment frequency-domain electromagnetic loop prospecting system, was operated in the Soda Lakes geothermal area, Nevada. Thirteen stations were occupied at distances ranging from 0.5-3.0 km from two transmitter sites. These yielded four sounding curves--the normalized amplitudes and phases of the vertical and radial magnetic fields as a function of frequency--at each station. In addition, two polarization ellipse parameters, ellipticity and tilt angle, were calculated … more
Date: July 1, 1980
Creator: Stark, M.; Wilt, M.; Haught, J. R. & Goldstein, N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bumps and poles in the S-matrix: A systematic study of 0 sup ++ and 2 sup ++ mesons plus a molecule approach to the E(1420) in the K K. pi. system

Description: The goal of Hadron Spectroscopy is to find the spectrum of states formed by color singlet arrangements of quarks and gluons. Ideally these spectral states are associated with poles of the scattering matrix of hadrons which are the decay channels of the states. For example the {rho} meson is the lowest q{bar q} s-wave, spin one color singlet state and decays into {pi}{sup +}{pi}{sup -}. Since the {rho}decays in a relative p-wave, one finds the {rho} pole in the I = 1 p-wave {pi}{pi} phase shifts… more
Date: November 16, 1989
Creator: Longacre, R. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Parity violation in polarized electron scattering

Description: The weak forces are responsible for the decay of radioactive nuclei, and it was in these decay processes where parity non-conservation was first observed. Beta decay occurs through emission of e/sup +/ or e/sup -/ particles, indicating that the weak force can carry charge of both signs, and it was natural to speculate on the existence of a neutral component of the weak force. Even though weak neutral forces had not been observed it was conjectured that a neutral component of weak decay could ex… more
Date: October 1, 1980
Creator: Prescott, Charles Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experimental Determination of the Effective Nucleon-Nucleon Interaction for P-Nucleus Reactions at Intermediate Energies

Description: A complete measurement of the polarization transfer observables has been made for the first time in the (p,p') reaction at intermediate energies. Measurements are reported for the /sup 12/C(p,p') /sup 12/C reaction to the 1/sup +/, T = 0(12.71 MeV) and 1/sup +/, T = 1(15.11 MeV) states at 500 MeV at laboratory scattering angles of 3.5/sup 0/, 5.5/sup 0/, 7.5/sup 0/, and 12.0/sup 0/. Linear combinations of these observables are shown to exhibit a very selective dependence on the isoscalar and is… more
Date: January 1, 1982
Creator: McClelland, J. B.; Aas, B. & Azizi, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of nuclear models for higher energy calculations

Description: Two nuclear models for higher energy calculations have been developed in the regions of high and low energy transfer, respectively. In the former, a relativistic hybrid-type preequilibrium model is compared with data ranging from 60 to 800 MeV. Also, the GNASH exciton preequilibrium-model code with higher energy improvements is compared with data at 200 and 318 MeV. In the region of low energy transfer, nucleon-nucleus scattering is predominately a direct reaction involving quasi-elastic collis… more
Date: January 1, 1988
Creator: Bozoian, M.; Siciliano, E. R. & Smith, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Hadronic wave function in quantum chromodynamics

Description: The underlying link between hadronic phenomena in quantum chromodynamics at large and small distance is the hadronic wavefunction. The theoretical and empirical constraints on the hadronic wave-function and hadronic structure functions; the predictions of perturbative QCD for the large transverse momentum tail of the Fock state infinite momentum wavefunction psi (k/sub perpendicular to i/,x/sub i/,s/sub i/); the valence Fock state meson wavefunctions from the meson decay; the evolution equation… more
Date: January 1, 1980
Creator: Brodsky, S.J.; Huang, T. & Lepage, G.P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Two-photon (VUV + visible) resonance ionization spectroscopy of molecular hydrogen

Description: Two-photon transitions have been examined in molecular hydrogen using coherent vacuum ultraviolet (VUV) photons at a fixed wavelength of 118 nm and a tunable photon from a dye laser. Though the VUV intensity is very weak (/approximately/100 nJ per pulse) it was utilized very efficiently since most VUV photons in the ionoization region were absorbed. This is the first time that coherent VUV light has been employed with tunable visible light for the production of two-photon spectra and the measur… more
Date: April 1, 1988
Creator: McCann, M.P.; Chen, C.H. & Payne, M.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Rotational population patterns and searches for the nuclear SQUID (Superconducting Quantum Interference Device)

Description: This paper presents new theoretical results for rotational population patterns in the nuclear SQUID effect. (The term nuclear SQUID is in analogy to the solid-state Superconducting Quantum Interference Devices.) The SQUID effect is an interesting new twist to an old quest to understand Coriolis anti-pairing (CAP) effects in nuclear rotational bands. Two-neutron transfer reaction cross sections among high-spin states have long been touted as more specific CAP probes than other nuclear properties… more
Date: November 1, 1989
Creator: Canto, L.F.; Donangelo, R.J.; Farhan, A.R.; Guidry, M.W.; Rasmussen, J.O.; Ring, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Introduction to conformal field theory and string theory

Description: These lectures are meant to provide a brief introduction to conformal field theory (CFT) and string theory for those with no prior exposure to the subjects. There are many excellent reviews already available, and most of these go in to much more detail than I will be able to here. 52 refs., 11 figs.
Date: December 1, 1989
Creator: Dixon, L.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Width of nonlinear resonance

Description: Two approximations are made, one essential and the other not so essential but convenient to keep the analytical treatment manageable: (1) Only one nonlinear resonance is considered at a time so that the treatment is best suited when the tune is close to one resonance only. To improve this approximation, one must go to the next order which involves a canonical transformation of dynamical variables. Analytical treatment of more than one resonance is not possible for general cases. (2) In the form… more
Date: March 1, 1984
Creator: Ohnuma, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elastic scattering of polarized protons on helium three at 800 MeV

Description: A set of spin dependent parameters and cross sections has been measured for polarized p-/sup 3/He elastic scattering over the range of q .7 to 4.2 fm/sup -1/. The experiment was done at the Los Alamos Meson Physics Facility (LAMPF) using the High Resolution Spectrometer (HRS) with a polarized proton beam at .8 GeV. The focal plane polarimeter of the HRS was used to determine the spin direction of the scattered proton. Since /sup 3/He is one of the simplest nuclei, polarized p-/sup 3/He scatteri… more
Date: July 1, 1985
Creator: Azizi, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Strong effects in weak nonleptonic decays

Description: In this report the weak nonleptonic decays of kaons and hyperons are examined with the hope of gaining insight into a recently proposed mechanism for the ..delta..I = 1/2 rule. The effective Hamiltonian for ..delta..S = 1 weak nonleptonic decays and that for K/sup 0/-anti K/sup 0/ mixing are calculated in the six-quark model using the leading logarithmic approximation. These are used to examine the CP violation parameters of the kaon system. It is found that if Penguin-type diagrams make import… more
Date: April 1, 1980
Creator: Wise, M.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Seismic design technology for breeder reactor structures. Volume 1. Special topics in earthquake ground motion

Description: This report is divided into twelve chapters: seismic hazard analysis procedures, statistical and probabilistic considerations, vertical ground motion characteristics, vertical ground response spectrum shapes, effects of inclined rock strata on site response, correlation of ground response spectra with intensity, intensity attenuation relationships, peak ground acceleration in the very mean field, statistical analysis of response spectral amplitudes, contributions of body and surface waves, eval… more
Date: April 1, 1983
Creator: Reddy, D.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiative capture studies of the electromagnetic decays of highly excited states

Description: Selected examples of interesting E1, M1, and E2 resonance studies in (p,..gamma..) and (..cap alpha..,..gamma..) reactions are discussed. These include a unique determination of E1 amplitudes in the /sup 12/C(P,..gamma../sub 0/)/sup 13/N reaction, E2 strength in light nuclei, M1 decays to the ground states and to the excited O/sup +/ states of the doubly magic /sup 16/O and /sup 40/Ca nuclei, second harmonic E1 resonances in (p,..gamma..), and M1 ..gamma..-decay of stretched particle-hole state… more
Date: January 1, 1980
Creator: Snover, K. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experimental modeling of laminar composites for multifrequency eddy current measurements. [Thickness and resistivity measurement on Al/Kapton or Al/polyimide]

Description: This report describes a computer modeling program, originally developed by Dodd and Deeds of Oak Ridge National Laboratory, capable of calculating the experimental voltage amplitudes and phases which can be obtained with rectangular cross-section coils being operated at multiple frequencies. This program was applied to two multilayered composites in order to determine the feasibility of making thickness and resistivity measurements of the individual layers. The results of these calculations ind… more
Date: August 1, 1980
Creator: Heckman, R. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research results reported by OEO summer (1981) student employees of LLNL working with Earth Sciences (K) Division personnel

Description: Significant experimental results were achieved in a number of research programs that were carried out during the summer of 1981 by students sponsored by the Office of Equal Opportunity at the Lawrence Livermore National Laboratory. These students were working with Earth Sciences (K) Division personnel. Accomplishments include the following: (1) preparation of post-burn stratigraphic sections for the Hoe Creek III experiment, Underground Coal Gasification project; (2) preparation of miscellaneou… more
Date: January 1, 1982
Creator: Doyle, M. C.; Griffith, P. J.; Kreevoy, E. P.; Turner, III, H. J. & Tatman, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculating many-body effects in resonant ((dt. mu. )d2e) formation

Description: A method is developed for calculating the effect of neighboring molecules on the resonant molecular formation reaction t..mu.. + D/sub 2/ ..-->.. ((dt..mu..)d2e)*, avoiding any expansion in powers of the density. Using a simplified model, the role of collisional broadening, motional narrowing, and the interference of different formation amplitudes is examined. This model is used to generate molecular formation rates as functions of density for fixed temperature. The generalization which will al… more
Date: January 1, 1986
Creator: Leon, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Spin-polarization observables in elastic electron scattering from spin-1/2 nuclei

Description: Using the formalism of nucleon-nucleon scattering as a starting point, electron scattering from spin-1/2 nuclei is examined. It is seen that high-energy electron-nucleon scattering, for example, exhibits a remarkable simplicity when compared with that of nucleon-nucleon scattering. The 6 amplitudes and 36 nucleon-nucleon observables are reduced to 3 and 9, respectively, by the relativistic nature of the electron. The one-photon exchange mechanism finally reduces the number of amplitudes and ind… more
Date: May 1, 1985
Creator: Conzett, H.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Acoustic-emission monitoring of LOFT fuel-cladding-burst tests

Description: Experiments at the Loss-of-Fluid Test Facility (LOFT), beginning with experiment L6-8 (Anticipated Transient Experiment), will use a core equipped with several pressurized fuel rods. Because some of the tests may produce temperature and pressure conditions which could conceivably burst a number of rods, a nondestructive method for burst detection is needed. Acoustic emission monitoring of a number of tests of small zircaloy tubing samples, each with internal gas volume similar to that of an act… more
Date: February 1, 1982
Creator: Reinhardt, W. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Antinucleon physics

Description: Some of the recent data from LEAR, Brookhaven, and KEK on low and medium energy interactions of antinucleons (anti N) with nucleons (N) are reviewed and interpreted. Emphasis is on elastic and charge exchange scattering, total cross sections, and studies of anti NN annihilation, with particular focus on the emerging evidence for broad resonances and/or bound states of the anti NN system and the selection rules which reveal the quuark-gluon dynamics of the annihilation process. 69 refs., 8 figs.
Date: January 1, 1986
Creator: Dover, C. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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