Now showing items 11-20 of 134
On the bare pomeron graph in two-dimensional QCD
(Elsevier, 1977-10-03)
We present a detailed study of the bare pomeron graph in two-dimensional QCD in the 1/Nc approximation. The absence of a new singularity unrelated to quark parameters is derived. The "cylinder" graph is shown to induce ...
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 ...
The weak coupling model applied to the nuclei with A = 16-19: (I). Energy levels
(Elsevier, 1970-03-31)
We have formulated particle-hole states by coupling in J and T eigenfunctions resulting from diagonalization of (sd)n1 and pn2. A central particle-hole interaction is assumed and the results for the negative parity levels ...
On the bound states of the massless free field in two space-time dimensions
(Elsevier, 1976-12-06)
We point out the peculiar kinematics of zero-mass fields in two space-time dimensions by showing that the n-fold tensor product of one-particle representations of the Poincare group for n [ges] 2 contains a countable ...
A description of drift chambers used in a Fermilab experiment
(Elsevier, 1976-11-01)
We give a detailed description of the drift chamber system used in a charm search at Fermilab. All important aspects of design and performance are discussed.
The reaction 26Mg(d, [tau])25Na and the structure of 25Na
(Elsevier, 1973-04-16)
The nuclear structure of the nucleus 25Na has been studied with the (d, [tau]) proton pick-up reaction on 26Mg at a bombarding energy of 29 MeV with an energy resolution of 25 to 30 keV FWHM. Excited states in 25Na have ...
Absorbed dose rate produced by natural uranium as a function of depth in tissue
(Elsevier, 1979-02)
Slabs of natural and depleted uranium are used routinely to calibrate personal dosimeters and radiation survey instruments for beta radiation. However, little information is available on the absorbed dose rate produced by ...
On the reconstruction of s-channel helicity amplitudes from a complete set of measurements
(Elsevier, 1976-07-15)
The problem of reconstruction of the pp elastic scattering amplitudes from a complete set of measurements has been studied, taking into account the new experiments, which have become feasible with the advent of a high ...
The 208Pb([alpha], 3He)209Pb reaction at 58 MeV
(Elsevier, 1975-08-04)
The 208Pb([alpha], 3He)209Pb reaction at 58 MeV has been used to search for high-spin states in 209Pb. Only three levels are excited with appreciable intensity: the ground state and levels at . The angular distributions ...
Measurement of the 171Tm isomeric lifetime as a teaching laboratory experiment
(Elsevier, 1970-09)
A teaching experiment is described in which two methods are applied to determine the lifetime of an isomeric state in 171mTm. One method, a single channel measurement, utilizes a delayed coincidence technique while the ...