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A new search for conversion of muonium to antimuonium

Description: To search for conversion of muonium (M {identical to} {mu}{sup +}e{sup {minus}}) to antimuonium ({anti M} {identical to} {mu}{sup {minus}}e{sup +}) with very low background, a new signature was implemented that required the time-coincident detection of the decay e{sup {minus}}({le} 53 MeV) with the atomic e{sup +}({approximately} 13 eV) from decay of an {anti M} atom. A 20 MeV/c {mu}{sup +} beam was stopped in a 9 mg/cm{sup 2} SiO{sub 2} powder target. Muonium, formed in the powder, diffused in… more
Date: October 1, 1991
Creator: Matthias, B.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A measurement of the p p total cross section at radical s = 1800 GeV

Description: The {bar p}p differential elastic scattering cross section was measured at {radical}{bar s} = 1800 GeV, using an improved accelerator luminosity determination and CDF small angle data in the range of 0.05 {le} t {le} 0.2(GeV/c){sup 2}. By extrapolating the differential cross sections to t=0 and using the optical theorem we obtain a total cross section of {sigma}{sub tot}({bar p}p) = 72.0 {plus minus} 3.6 mb. This result is preliminary in the sense that we expect to further reduce the systematic… more
Date: October 1, 1991
Creator: White, S. (Rockefeller Univ., New York, NY (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mechanisms governing fine particulate emissions from coal flames

Description: During this reporting period the global experiments were concluded. The final activities under these experiments involved measuring mineral content of coals as a function of coal particle size. The principal activities during this quarter involved the mechanistic experiments. Three baseline coals were cleaned and two of these sized. The ash from these various cuts were sampled from a bench scale reactor. The ash size distributions were compared to distributions predicted by the breakup model.
Date: October 1, 1989
Creator: Newton, G. H.; Schieber, C.; Socha, R. G.; Clark, W. D. & Kramlich, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation in the SLC final focus alcoves from beam losses in collimators and dumps. Revision

Description: There are various beam line components between the interaction point (IP) of the SLC and the beam dumps which will intercept enough beam to warrant calculating the radiation levels inside the final focus alcoves. The three types of devices which are of concern are the main dump, tune-up dumps, and adjustable collimators. Fluences of and doses from neutrons and photons in the alcoves are calculated. It is concluded that if the beam losses do occur as expected, many of the electronic components i… more
Date: October 1, 1986
Creator: Jenkins, T.M. & McCall, R.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Volatile production during preignition heating. Final technical report, 15 September 1980-30 September 1982

Description: Pulverized coal particles, in a flowing inert nitrogen stream, have been heated by high power Carbon Dioxide Laser. The consequence of such an irradiation have proved to be both novel and surprising as a result of the rapid quenching of primary coal products. It ahs been found that the gas phase yield from such heating (typically, temperatures in excess of 1400 K at rates approx. 2 x 10/sup 5/ K/s) is very small (< 0.2 percent of coal carbon and hydrogen). Analysis of the solid residue has show… more
Date: October 1, 1983
Creator: Ballantyne, A.; Chou, H.; Flusberg, A.; Neoh, K.; Orozco, N. & Stickler, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Double proton beam for E-621

Description: For experiment 621 we plan to modify the transport system of the Proton-center beam to create two side-by-side proton beams separated by two inches. This Technical Memo describes how we plan to do this, and the results we hope to attain.
Date: October 1, 1982
Creator: Thomson, G.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elementary Particle Interactions

Description: This report discusses: Data analysis of Fermilab E-745 and Fermilab E-782 neutrino experiments; light quark meson spectroscopy; L-3 detector; SLD detector; and SSC detector research and development.
Date: October 1, 1991
Creator: Bugg, W. M.; Condo, G. T.; Handler, T.; Hart, E. L.; Read, K.; Ward, B. F. L. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Looking for precursors of neutron matter exotica

Description: The question of the possible stability of neutron matter is investigated within the framework of a Thomas-Fermi model of nuclei. Some of the consequences of bound (or slightly unbound) neutron matter are discussed. A comparison is then made between the model predictions and the observed neutron drip line for light nuclei. The tentative conclusion arising from this comparison is that neutron matter is probably unbound, in approximate agreement with an earlier theoretical estimate. Quantum effect… more
Date: October 1, 1989
Creator: Myers, W.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Polariton effects in naphthalene crystals

Description: The experimental verification of the two-step nature of energy dissipation of photon energy by a crystal is the subject of this dissertation. The ..cap alpha..(O,O) Davydov component of the lowest energy singlet transition in pure strain-free napthalene single crystals is shown to exhibit an increase in absorption with increasing temperature, due to an increase in polariton damping via polariton-phonon scattering processes. (GHT)
Date: October 1, 1977
Creator: Robinette, S. L.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
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Fission-product energy release for times following thermal-neutron fission of /sup 235/U between 2 and 14000 seconds

Description: Fission-product decay energy-releases rates were measured for thermal-neutron fission of /sup 235/U. Samples of mass 1 to 10 ..mu..g were irradiated for 1 to 100 sec by use of the fast pneumatic-tube facility at the Oak Ridge Research Reactor. The resulting beta- and gamma-ray emissions were counted for times-after-fission between 2 and 14,000 seconds. The data were obtained for beta and gamma rays separately as spectral distributions, N(E/sub ..gamma../) vs E/sub ..gamma../ and N(E/sub beta/) … more
Date: October 1, 1977
Creator: Dickens, J. K.; Emery, J. F.; Love, T. A.; McConnell, J. W.; Northcutt, K. J.; Peelle, R. W. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation theory applied to the static and dynamic properties of EuO and EuS

Description: The paramagnetic scattering was recently measured for EuO. It was found that spin-wave-like excitations develop for wave vectors approaching the zone boundary. The spectrum was found to be well described by damped harmonic oscillators (also called the two-pole-approximation). This approximation was used previously in the correlation theory primarily to calculate static properties. Selfconsistent dynamic and static calculations have been performed for EuO, which is an ideal Heisenberg magnet wit… more
Date: October 1, 1981
Creator: Lindgard, P.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Irradiation test OF-2: high-temperature irradiation behavior of LASL-made fuel rods and LASL-made coated particles. [ZrC coated particles]

Description: Three LASL-made, substoichiometric ZrC-coated particles with inert kernels, and two high-density molded graphite fuel rods that contained LASL-made, ZrC-coated fissile particles were irradiated in the Oak Ridge Research Reactor test OF-2. The severest test conditions were 8.36 x 10/sup 21/ nvt (E greater than 0.18 MeV) at 1350/sup 0/C. The graphite matrix showed no effect of the irradiation. There was no interaction between the matrix and any of the particle coats. The loose ZrC coated particle… more
Date: October 1, 1977
Creator: Wagner, P.; Reiswig, R. D.; Hollabaugh, C. M.; White, R. W.; O'Rourke, J. A.; Davidson, K. V. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inverse problem for Bremsstrahlung radiation

Description: For certain predominantly one-dimensional distribution functions, an analytic inversion has been found which yields the velocity distribution of superthermal electrons given their Bremsstrahlung radiation. 5 refs.
Date: October 1, 1991
Creator: Voss, K. E. & Fisch, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Current-drive by lower hybrid waves in the presence of energetic alpha-particles

Description: Many experiments have now proved the effectiveness of lower hybrid waves for driving toroidal current in tokamaks. The use of these waves, however, to provide all the current in a reactor is thought to be uncertain because the waves may not penetrate the center of the more energetic reactor plasma, and, if they did, the wave power may be absorbed by alpha particles rather than by electrons. This paper explores the conditions under which lower-hybrid waves might actually drive all the current. 2… more
Date: October 1, 1991
Creator: Fisch, N. J. & Rax, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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/sup 3/He functions in tokamak-pumped laser systems

Description: /sup 3/He placed in an annular cell around a tokamak fusion generator can convert moderated fusion neutrons to energetic ions by the /sup 3/He(n,p)T reaction, and thereby excite gaseous lasants mixed with the /sup 3/He while simultaneously breeding tritium. The total /sup 3/He inventory is about 4 kg for large tokamak devices. Special configurations of toroidal-field magnets, neutron moderators and beryllium reflectors are required to permit nearly uniform neutron current into the laser cell wi… more
Date: October 1, 1986
Creator: Jassby, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Jets in e/sup +/e/sup -/ annihilation

Description: We have a simple perturbative picture of the production of hadrons from e/sup +/e/sup -/ annihilations which works quite well in predicting the main features of this interaction. It explains the magnitude of the total cross-section, the basic two-jet structure, and the final state angular distributions. It is also consistent with our present ideas about the structure of hadronic matter and the requirement that at high enough energies, the corrections due to strong interactions are small and hen… more
Date: October 1, 1983
Creator: Hollebeek, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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nu. N,. mu. N interactions: structure functions, higher twist

Description: Data on deep inelastic scattering of leptons by nucleons and nuclei have been accumulated for several years. Results exist from several experiments with electron, muon, neutrino beams. In this talk I shall review the most recent experiments which measured nucleon structure functions with ..nu.. and ..mu.. beams. In particular, I will summarize the results on R = sigma/sub L//sigma/sub T/ measurement, on F/sub 2/(x,Q/sup 2/), and xF/sub 3/(x,Q/sup 2/), and their interpretation in terms of QCD, i… more
Date: October 1, 1981
Creator: Matteuzzi, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Summaries of FY 1977, research in high energy physics

Description: The U.S. Department of Energy, through the Office of Energy Research and the Division of High Energy and Nuclear Physics, provides approximately 90% of the total federal support for high energy physics research effort in the United States. The High Energy Physics Program primarily utilizes four major U.S. high energy accelerator facilities and over 50 universities under contract to do experimental and theoretical investigations on the properties, structure and transformation of matter and energ… more
Date: October 1, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation Laboratory, University of Notre Dame. Quarterly report, July 1, 1977--September 30, 1977. [Short summaries of progress in 27 projects]

Description: Status of the following investigations is given: effect of molecular geometry on the electron affinity of H/sub 2/O; effect of non-spherically symmetric exchange potential in energy transfer and CIDEP; fragmentation patterns in the radiolysis of normal alkanes; properties of solvated electrons; temperature dependence of electron localization and impurity trapping in methanol and propanol; field-dependent electron mobility; aluminium cluster and organoaluminum systems; collision-induced atomic d… more
Date: October 13, 1977
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High energy hadron--hadron collisions. Annual progress report. [Summaries of research activities at the University of Georgia]

Description: Work on high energy hadron collisions in the geometrical picture, performed under the ERDA Contract No. E(38-1)-946, is summarized. Comparisons with new experimental results are made. Specific items discussed include the hadronic matter distribution for mesons and the comparison of theoretical prediction with a recent experiment, the possible existence of a second minimum in elastic pp scattering at very high energies, the analysis of the energy dependence of opaqueness in pp collisions, and th… more
Date: October 1, 1977
Creator: Chou, T.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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