Showing papers in "Nuclear Physics in 1975"

TL;DR: In this article, a detailed study of the influence of the force parameters on the binding energies, charge densities, radii and single-particle energies of magic nuclei is made.

TL;DR: In this article, the Higgs mechanism was extended in a supergauge invariant way, and spontaneous symmetry breaking occurred for all allowed values of the parameters of the scalar potential.

TL;DR: In this article, the spontaneous breakdown of supersymmetry and internal symmetry for the interaction of N chiral scalar superfields is studied, and a lemma is established which shows that spontaneous breakdown is a very rare occurrence, but that it can happen (in at least the tree approximation) is shown by the construction of a model.

TL;DR: In this paper, it was shown that the spinor current belongs to a supermultiplet, together with the energy-momentum tensor and the axial-vector current.

TL;DR: In this article, the Ward-Takahashi identities for scalar electrodynamics in Fermi gauges are shown to imply a homogeneous first-order partial differential equation for the effective potential involving only the gauge parameter and the external scalar field.

TL;DR: In this article, absolute nuclear photon absorption cross sections have been measured for the elements Li, Be, C, O, Al, Si and Ca from 10 MeV up to photon energies beyond the meson production threshold.

TL;DR: In this article, the energy spectrum of an odd nucleon coupled to a triaxial rotating core has been calculated as a function of the deformation β, the asymmetry γ and the Fermi energy λf.

TL;DR: In this paper, the production of charged pions, kaons, and nucleons in proton-proton collisions at c.m. energies from √ s = 23 to 63 GeV at large angles and for the transverse momentum range 0.1 p T c.

TL;DR: In this paper, the time-dependent Hartree-Fock theory (TDHF) and its adiabatic approximation (ATDHF) are formulated in coordinate space using effective density-dependent interactions of Skyrme type.

TL;DR: In this paper, the RPA particle-hole theory of excitations is applied to the low multipolarities in 16 O, 40 Ca, and 208 Pb, and it is shown that the width of the giant dipole state in light nuclei is accounted for by the continuum.

TL;DR: In this article, a particle hole-interaction has been derived which gives a good account of the non-normal parity states of a number of nuclei from 11Be to 16O.

TL;DR: In this article, a new πN amplitude analysis and experimental data for the pion form factor have been used in order to determine the I = J = 1 ππ N N partial waves and properties of the ϱNN vertices.

TL;DR: In this paper, a theory for the statistical emission of large fragments is developed, where a ridge line in the potential energy surface is defined which controls the decay width of the system into any two given fragments.

TL;DR: In this paper, it was shown that the sum of all vacuum diagrams vanishes identically as a consequence of compensations among contributions involving different fields of the supermultiplet.

TL;DR: In this article, necessary and sufficient conditions for three double polarisation measurements to complement cross section and single polarization measurements in pseudoscalar meson photoproduction to enable amplitudes to be determined up to discrete ambiguities are derived.

TL;DR: The consequences of assuming weak and e.m. forces constitute a gauge field theory, and there are no heavy leptons, are investigated in this article, where a particular Higgs system containing two multiplets is studied in detail.

TL;DR: In this paper, a functional multistring field is obtained as the component of Φ in the basis {x} where the string operator X is diagonal, and it is shown unambiguously the Φ4 term which is needed to reproduce the complete tree dual amplitude.

TL;DR: In this article, a particular class of non-renormalizable interactions is studied in the infinite cut-off limit, where the Lagrangian is invariant under the action of the O(N) group and the Green functions are expanded in powers of 1/N.

TL;DR: In this article, the authors compared the unique-parity spectra of odd-alpha nuclei in the A = 135 and A = 190 mass regions with calculated energies and transition probabilities of a quasiparticle coupled to a rotating triaxial core.

TL;DR: In this article, it was shown that the sum over the divergent parts of the dual loops provides a renormalization of the Regge slope α' and the coupling constant g, preserving the relation between the coupling constants of the pomeron and the reggeon sector.

TL;DR: In this article, the authors proposed that the reason for the disagreement lies in the fact that sodium isotopes in this mass region are strongly deformed due to the filling of negative parity orbitais from the 1f 7 2 shell.

TL;DR: In this article, the energy dependence of the invariant cross section in pp inclusive reactions has been studied for several fixed values of (pt, x) and of (p, ylab), where pt,x, and ylab are the transverse momentum, the Feynman variable, and the rapidity variable, respectively.

TL;DR: In this article, a supersymmetric Yang-Mills Lagrangian was introduced, which is invariant under a global symmetry transformation which is the supersymmymmetric extension of the Slavnov symmetry.

TL;DR: In this paper, the deformation dependence of the static energy in doubly even N = Z nuclides from 32 C to 44 Ti has been determined by the macroscopic method.

TL;DR: In this paper, the energy of solid neutron matter configurations in which layers of parallel spin neutrons with spin direction perpendicular to the plane of the layer are stacked such that neutrons in adjacent layers have antiparallel spins was investigated.

TL;DR: In this article, the high-spin states in transitional odd-mass nuclei are studied in terms of an odd quasi-particle coupled to an asymmetric rotor with a variable moment of inertia (VMI).

TL;DR: In this paper, the gross theory of β-decay is applied to make improved estimates of the absolute magnitude of βdecay half-lives and related variables in the r-process calculation.

TL;DR: In this article, one-loop effective potentials for elementary systems placed in a strong magnetic or a laser-produced electromagnetic environment are computed for the case where the system can make transitions from a spontaneously broken asymmetric phase to restored symmetry.

TL;DR: In this paper, the renormalization group function β ( g ) to O( g 5 ) for a supersymmetric Yang-Mills theory is presented, and it is shown that in no case do both the leading terms in the perturbation expansion of β( g ) vanish.