Now showing items 1-10 of 80
Obtaining real parts of scattering amplitudes directly from cross section data using derivative analyticity relations
(Elsevier, 1974-04-15)
We show that one can obtain real parts of scattering amplitudes by knowing the imaginary parts at only nearby energies. This is accomplished by re-casting the dispersion integral into an equivalent form which we will calla ...
Euclidean Fermi fields with a hermitean Feynman-Kac-Nelson formula. I
(Springer-Verlag, 1974-03)
We construct free, Euclidean, spin one-half, quantum fields with the following properties: (i) CAR; (ii) Symanzik positivity; (iii) Osterwalder-Schrader positivity; (iv) no doubling of particle or spin states. They admit ...
Assignments of the n[pi]* singlet states of p-benzoquinone
(Elsevier, 1974-03-30)
The vapor phase fluorescence spectra of p-benzoquinone-h4 and d4 are reported and discussed in relation to the assignment of the low lying singlet states. The low temperature, polarized single crystal electronic absorption ...
Measurement of three-dimensional temperature fields above heated surfaces by holographic interferometry
(Elsevier, 1974-12)
Optical holography can be used to record multi-directional interferometric data, which provides a basis for measuring three-dimensional, asymmetric temperature or density fields in fluids. If continuous optical pathlength ...
The University of Michigan cyclotron facility for research in nuclear structure
(Elsevier, 1974)
A number of improvements have been made in The University of Michigan 83" sector focused cyclotron since its original construction. The reasons for the changes and the resulting improvement in the production of stable ...
Field‐dependent relaxation and absolute nuclear shielding of 207Pb in liquid PbCl4
(The American Institute of Physics, 1974-02-01)
Relaxation times T1 and T2 of 207Pb in liquid PbCl4 have been studied for the purpose of establishing an absolute nuclear shielding scale for lead. T1 has been decomposed into scalar and spin‐rotation contributions using ...
Free convective heat transfer from slender cylinders subject to uniform wall heat flux
(Elsevier, 1974)
For laminar flows over slender cylinders, the boundary-layer equations do not admit similarity solutions as do the laminar layers over cylinders with large radius. Consequently, the prediction of heat transfer from such ...
Diffraction dissociation of neutrons in the reaction dp --> ppp[pi]- at 25 GeV/c
(Elsevier, 1974-09-18)
We observe the reaction dp --> pspec (p[pi]-)p in a bubble chamber exposure at 25 GeV/c incident deuteron momentum. The (p[pi]-) system with invariant mass below 2.0 GeV is interpreted as neutron diffraction dissociation. ...
The 40Ar([tau], n)42Ca reaction
(Elsevier, 1974-05-13)
The results of an investigation of the 40Ar([tau], n)42Ca reaction at 18.65 MeV incident energy are reported. The weakness of the transition to the 1.84 MeV 0+ level is in disagreement with 4p-2h descriptions of this state.
A mechanical time-of-flight neutron diffractometer
(Elsevier, 1974-02-01)
A mechanical time-of-flight (TOF) neutron diffractometer has been constructed and a system of data analysis developed for the study of noncrystalline substances through radial density functions. Measurements to wave vector ...