Showing papers in "Physics Reports in 1976"

TL;DR: In this article, the authors define stochastic differential equations (SDEs) and their occurrence in physics, and present an alternative treatment, applicable only in a special case, but not confined to small ατ c.

TL;DR: In this article, the authors combine the many-body theory and the low-density expansion developed by Brueckner, Bethe and others to investigate several properties of the ground state and of single-particle excited states of symmetric nuclear matter.

TL;DR: In this article, a detailed treatment of the theoretical and experimental aspects of the symmetric (e, 2e) reaction in atoms, molecules and solids is presented, and two experimental arrangements are described for measuring angular correlations and separation energy spectra.

TL;DR: The status of knowledge of the intermolecular potential, structural and thermodynamic properties, and lattice dynamics are discussed in detail and suggestions are made for further research as discussed by the authors.

TL;DR: A comprehensive survey of experimental and theoretical work on large transverse momentum processes can be found in this article, where exclusive data and single particle inclusive measurements are summarized and some discussion of multiparticle inclusive data is included.

TL;DR: Theoretical aspects of the interaction of atoms with the radiation field are reviewed with emphasis on those features of the interactions requiring field quantization as mentioned in this paper, with special attention given to the theory of spontaneous emission.

TL;DR: In this article, the authors review the statistical mechanics of polymer solutions with reference to the theories of scaling, current in the theory of phase transitions, and the relation of the polymer problem to magnetic systems.

TL;DR: A review of experimental results on multiparticle production, as studied in the bubble chamber, are summarized and comparisons are made among the different incident projectile and target reactions as discussed by the authors, and preliminary results are available from interactions of K± with protons, π+ and protons with deuterium, and π− with neon.

TL;DR: In this article, a review of recent achievements in the application of NMR to surface phenomena, especially to molecules adsorbed on surfaces of porous crystals, is presented, where basic principles of nuclear magnetic resonance are treated only as far as it is necessary to understand potentialities of this method in a study of absolute number (section 2.1), electronic environment, arrangement, and thermal motion of nuclei which are part of absorbate or adsorbent.

TL;DR: The influence of the amorphous structure on the electron and phonon system is discussed in this article, where the electron-phonon interaction does not conserve momentum due to the loss of translational invariance in the Amorphous metal and yields a large contribution to α2F(ω) at low frequencies.

TL;DR: A literature review on the present state of knowledge in photoionization is presented in this paper, where various experimental techniques that have been developed to study photoionisation, such as fluorescence and photoelectron spectroscopy, mass spectroscopic, are examined.

TL;DR: In this paper, the available experimental information concerning the low-lying rotational-band energies in rare-earth nuclei with odd neutron and proton numbers is analyzed within the framework of the unified model.

TL;DR: In this article, the authors proposed a perturbative method for dealing with quantum fluctuations around the type of classical solution which received much attention recently, and they showed that, by going to a moving frame, we can always reduce to perturbation around a time independent classical solution, which is then analogous to the one soliton case.

TL;DR: In this article, the authors reviewed all the high-resolution data on fragmented analogue states taken at the Triangle Universities Nuclear Laboratory, over a period of ten years, and discussed the optimum method of analysis of the data with a view to extracting the physical parameters of the analogue: the energy, proton spectroscopic factor, spreading width, shift and asymetry parameter.

TL;DR: In this paper, an account of the theory of the exchange interactions between localized moments in an insulating crystal, using recently developed techniques, is given, and a clear route is provided whereby one can pass from a general Hamiltonian to a spin-Hamiltonian.

TL;DR: In this paper, the equations of Gribov's Reggeon calculus and the cutting rules of Abramovskii and Kancheli are derived from the assumption that processes involving large virtual masses are damped.

TL;DR: In this article, the authors considered the case where the energy of the incoming deuteron is below the Coulomb barrier and showed that this reaction which interferes with the direct breakup process, can again be well described in the post-form of the DWBA.

TL;DR: In this article, it is shown that the quantum assertion that superconducting systems are manifestations of quantum mechanics on a macroscopic scale is true within the framework of the microscopic theory of superconductivity.

TL;DR: The experimental status of the processes p + p $Yields$ l/sup +-/ + anything, L/sup+$ + l$sup -$ + anything is reviewed in this article.

TL;DR: A review of the progress in our knowledge of the subject since Bullard's [1] Bakerian Lecture to the Royal Society in 1967 can be found in this paper, where the detailed behaviour of the magnetic field during a polarity transition is described as well as the more recently observed phenomenon of excursions of the field or aborted reversals.

TL;DR: In this article, a self-contained treatment of the infrared problem in quantum electrodynamics is presented, which includes a derivation and proof of finiteness of modified reduction formulae for scattering in Coulomb potentials and unitary extensions of the relativistic Coulomb amplitudes in the forward direction.

TL;DR: In this article, the classical soliton solution is defined to be one that has finite and nonzero rest mass, and is contained in a finite region in space, and the generalization of the soliton mechanism to include fermions, leading to abnormal nuclear states.

TL;DR: In this paper, a quasi-stationary spiral structure observed in actual galaxies is explained by the non-linear interaction of the growing stellar wave and the interstellar gas, and it is shown that this interaction results in the time-asymptotic limit in a constant amplitude of the spiral wave.

TL;DR: In this paper, the electron-electron and electron-phonon interactions are described in terms of energy-dependent mean free paths, and the probability for electrons to escape over the inner potential barrier within the structure account has been taken of both their being scattered within the barrier region and their quantum-mechanical character.