Now showing items 11-20 of 92
The operation of a pressurized ultraviolet photoionization threshold cherenkov counter
(Elsevier, 1981-07-15)
We have successfully tested an ultraviolet photoionization Cherenkov counter in a 10 GeV/c pion beam. The counter has been tested to 11 atm pressure for use as a [pi]-K separator. The design and operation of the counter ...
Irreducible diagrams in Landau-Ginzburg field theory
(Elsevier, 1981-10-19)
It is shown that the free energy W of a Landau-Ginzburg-Wilson field theory with O(n) symmetry may be written in terms of the generating function V of diagrams irreducible in both propagator and interaction lines. This ...
Suppression of multiple scattering effects in quasielastic light scattering by homodyne cross‐correlation techniques
(The American Institute of Physics, 1981-01-01)
By studying cross correlations in the intensity of light scattered by a fluid sample in different directions at different times, it is possible to measure the dynamic scattering function S(k,t) for the fluid. The multiple ...
Equatorial night-time F-region events: a survey of 6300 A airglow intensity maps at Arecibo
(Elsevier, 1981-08)
6300 A nightglow intensities have been mapped along an arc following the emission layer. The resulting time vs zenith angle airglow maps show significant structure which is classified into three main types: meridional ...
Solid state and magnetochemistry of the SrO‐Fe2O3 system IV. Synthesis of SrFe12O19 from coprecipitated precursors
(The American Institute of Physics, 1981-03)
By means of 57Fe Mössbauer spectroscopy and powder x‐ray diffraction techniques, it has been determined that the formation of SrFe12O19 from coprecipitated ferric hydroxide and strontium laurate follows a reaction mechanism ...
Nonrelativistic Coulomb Green’s function in parabolic coordinates
(The American Institute of Physics, 1981-02)
The nonrelativistic Coulomb Green’s function G(+)(r1,r2,k) is evaluated by explicit summation over discrete and continuum eigenstates in parabolic coordinates. This completes the derivation of Meixner, who was able to ...
Current phenomenological status of Higgs physics and technicolor
(The American Institute of Physics, 1981-05)
The present situation concerning experimental constraints on Higgs physics is reviewed. (AIP)
Critical exciton annihilation: Diffusion, percolation or anderson transition?
(Elsevier, 1981-11)
Guest-Guest Triplet-Triplet annihilation in highly purified mixed crystals of naphthalene (guest)- naphthalene-d8 (host) was studied at 1.8 K via spectrally and time-resolved phosphorescence and delayed- fluorescence. We ...
Quantum mechanics in one band of a solid
(Elsevier, 1981-06-08)
The Bravais lattice operator and the quasimomentum are shown to form a complete set of conjugate operators in one band of a solid.
The effect of vehicle on the tissue distribution profiles of radioiodinated cholesterol esters in the rat
(Elsevier, 1981)
Several groups have examined the possible use of radioiodinated cholesterol esters to achieve selective uptake of radioactivity in the adrenal cortex and have obtained variable results. This study indicates that the tissue ...