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Experiment to measure the gravitational force on the antiproton

Description: A collaboration has been formed to measure the acceleration of antiprotons in the earth's gravitational field. The technique is to produce, decelerate, and trap quantities of antiprotons, to cool them to untralow energy, and to measure their acceleration in a time-of-flight experiment. Present plans and the results of initial efforts toward this end are presented.
Date: January 1, 1985
Creator: Brown, R.E.
Partner: UNT Libraries Government Documents Department

[Receipt of Levi Perryman and W. A. Morris, September 24, 1879]

Description: Three receipts, one of W. A. Morris and two of Levi Perryman. W. A. Morris received %5.40 for clerk costs in case No. 512. Levi Perryman received through W. A. Morris $2.60 for clerk costs in case No. 521 and $4.80 for clerk costs in case No. 523. All receipts are signed by the District Clerk R. E. Brown.
Date: September 24, 1879
Creator: Brown, R. E.
Partner: UNT Libraries Special Collections

Hydrogen fusion-energy reactions

Description: At the Los Alamos Ion Beam Facility we have installed a low-energy fusion cross section (LEFCS) apparatus specifically designed to measure cross sections to high accuracy for the various fusion-energy reactions among the hydrogen isotopes in the bombarding-energy range 10 to 120 keV. To date, we have completed and published our study of the D(t,..cap alpha..)n reaction, have finished data-taking for the D(d,p)T and D(d,/sup 3/He)n reactions, and have nearly finished data-taking for the T(t,..cap alpha..)nn reaction. Here we describe the LEFCS facility, present final and preliminary results for these reactions, and compare them with R-matrix calculations. 16 refs., 10 figs.
Date: January 1, 1985
Creator: Brown, R.E. & Jarmie, N.
Partner: UNT Libraries Government Documents Department

Problems associated with the extension of the stratigraphic units of south-central Washington. Part II. The post basalt sediments

Description: There are four district stratigraphic units within the Pasco Basin which if interpreted on the basis of recent field evidence and described properly could be traced over most of southeastern Washington. At the present time these post-basalt sediments are described in the literature in such a way as to make extensive correlations impossible. Some descriptions overlap more than one unit whereas others describe only a part of the unit. It is proposed that all interested geologists in the Pacific Northwest now consider reconciling the differences which exist in the names and descriptions of those sedimentary deposits in light of this new evidence.
Date: March 26, 1965
Creator: Brown, D.J. & Brown, R.E.
Partner: UNT Libraries Government Documents Department

Study of d + $sup 3$H and d + $sup 3$He systems with the resonating-group method

Description: The one-channel resonating-group method, together with a phenomenological imaginary potential, is used to study the d + /sup 3/H and d + / sup 4/He systems. The calculations show that, because of the Pauli exclusion principle, these systems possess the following rather interesting feature: in the s = 3/2 state they behave similar to the d + alpha system, whereas in the s = 1/ 2 state they behave more like the /sup 3/He + /sup 4/He system. Phase shifts are computed up to 1 = 7, and an R-matrix analysis of these phases indicates that there are a large number of levels with resonance energies below 12 MeV. Differential scattering and total-reaction cross sections are compared with experimental data at several cm energies from about 2 to 14 MeV. This comparison shows that the introduction of an odd-even orbital-angular-momentum dependence into the imaginary potential can improve the agreement of the calculation with experiment. ( auth)
Date: January 1, 1972
Creator: Chwieroth, F.S.; Brown, R.E.; Tang, C.C. & Thompson, D.R.
Partner: UNT Libraries Government Documents Department

Cross section and analyzing power in the /sup 206/Pb(. -->. t,p) /sup 208/Pb(4/sup -/) reaction. [17 MeV, mechanism study]

Description: Cross sections and analyzing powers were measured in the /sup 206/Pb(..-->..t,p) /sup 208/Pb reaction leading to the 4/sup -/, 5/sup -/ states of the (p/sub 1/2//sup -1/ g/sub 9/2/) doublet. Standard DWBA calculations reproduce the cross section but not the analyzing power for the 5/sup -/ state. The opposite is true for a sequential transfer (t,d) (d,p) calculation for the 4/sup -/ state. 1 figure, 1 table.
Date: January 1, 1980
Creator: Alford, W.P.; Boyd, R.N.; Sugarbaker, E.; deBoer, F.; Brown, R.E. & Flynn, E.R.
Partner: UNT Libraries Government Documents Department

Data discrepancies in and new experiments for D+D, D+T, and T+T fusion reactions

Description: The purpose of this work is to investigate the accuracy of the basic fusion reaction data for the reactions T(d,n)/sup 4/He, T(t,2n)/sup 4/He, D(d,n)/sup 3/He, and D(d,p)T, and to describe an elaborate experiment in progress at the Los Alamos Scientific Laboratory to remeasure the cross sections with improved accuracy.
Date: January 1, 1979
Creator: Jarmie, N.; Hardekopf, R.A.; Brown, R.E.; Correll, F.D. & Ohlsen, G.G.
Partner: UNT Libraries Government Documents Department

Two-neutron transfer study on /sup 195/Pt

Description: The /sup 195/Pt(t,p)/sup 197/Pt reaction was investigated. Three states below 1 MeV are populated with a large fraction of the L = 0 strength, which is seen in the even-to-even cases. This is in contrast to other (p,t) and (t,p) studies on Pt targets, where the L = 0 strength is concentrated in the ground state. 1 figure, 1 table.
Date: January 1, 1980
Creator: Cizewski, J.A.; Flynn, E.R.; Brown, R.E. & Sunier, J.W.
Partner: UNT Libraries Government Documents Department

Fragmentation of elementary excitations in the transitional molybdenum isotopes. [17 MeV]

Description: A two-nucleon-transfer study of the molybdenum isotopes was carried out to investigate the transitional character of these nuclei. The results indicate that the lighter nuclei have spherical shell model characteristics whereas the heavier nuclei are rapidly becoming deformed. 1 table.
Date: January 1, 1980
Creator: Flynn, E.R.; Ajzenberg-Selove, F.; Brown, R.E.; Cizewski, J.A. & Sunier, J.W.
Partner: UNT Libraries Government Documents Department