Now showing items 31-40 of 153
Long range exciton percolation and superexchange: Energy denominator study on 3B1u naphthalene
(Elsevier, 1977-02-01)
The long-range exciton percolation model is found to describe the lowest triplet exciton superexchange ("tunneling") migration at low temperature (2 K), in our model alloy system: Binary isotopic mixed naphthalene crystals ...
Measurement of the transverse spin dependence of the pp total cross section in the 1-3 GeV/c region
(Elsevier, 1978-02-13)
The pp total cross section difference between pure transverse spin states was measured in the laboratory momentum range 1-3 GeV/c. Significant differences were found and these differences show striking energy dependence. ...
Difficulty with a kinematic concept of unstable particles: the SZ.-Nagy extension and the Matthews-Salam-Zwanziger representation
(Springer-Verlag, 1971-12)
We discuss the possibility of describing unstable systems, or dissipative systems in general, by vectors in a Hilbert space, evolving in time according to some non-unitary group or semigroup of translations. If the states ...
Effect of fluctuations on the thermal conductivity of He I near T[lambda]
(Elsevier, 1970-04-06)
A microscopic calculation of the contribution of order-parameter fluctuations to the thermal conductivity of liquid helium I near T[lambda] is shown to give results in agreement with experiments and the dynamic scaling hypothesis.
Spectroscopic and optically detected magnetic resonance studies of PO2-in potassium chloride. I. Electronic and vibrational states
(Elsevier, 1979-06-01)
The phosphorescence and phosphorescence excitation spectra of phosphorus activated single crystals of potassium chloride have been examined at 4.2 K. The "color center" responsible for the blue emission in these samples ...
The molecular theory of polarized emission: Linear, circular, and magnetically induced circular polarization of emission
(Elsevier, 1977-08-01)
Quantum field theory is used to derive transition probabilities pertinent to natural and magnetically induced polarized emission. First order terms in
New limits on D0 (1.865) production in proton-nucleus collisions at 400 GeV/c
(Elsevier, 1977-11-21)
We present final results of a sensitive search for new particles in [pi]+/-K[mnplus] effective mass spectra observed in proton-nucleus collisions at 400 GeV/c. We establish a limit for D0 (1.865) production B[pi]+[pi]- ...
Production properties of low-mass systems in pp collisions at 102 GeV/c
(Elsevier, 1974-10-28)
We examine in detail the properties of low-mass systems produced in the inclusive reaction p + p --> p + anything at 102 GeV/c. We find that the internal characteristics of these low-mass nucleon-multipion systems (the ...
Electron pairing as a source of cyclic instabilities in enzyme catalysis
(Elsevier, 1978-09-18)
Enzymatic reactions can be interpreted in terms of a thermodynamically consistent potential surface with different pathways for complex formation and decomposition. The construction suggests that unstable pairing of parallel ...
Arakawa's method is a finite-element method
(Elsevier, 1974-12)
The nine-point second-order difference method of Arakawa for the two-dimensional stream function-vorticity equations of incompressible fluid flow comes from bilinear finite elements in rectangles. Furthermore, any nine-point ...