Atomic Masses and Fundamental Constants 6

ISBN-13: 9781468437188 / Angielski / Miękka / 2013 / 572 str.

Jerry A. Nolen

Opis

The Sixth International Conference on Atomic Masses was held in East Lansing, Michigan, Sept. 18-21, 1979. The conference was initiated, organized, and sponsored by the Commission on Atomic Masses and Fundamental Constants of the International Union of Pure and Applied Physics. The members of the conference committee are listed below: W. Benenson, Chairman Michigan State University R. C. Barber University of-Manitoba E. R. Cohen Rockwell International Institute of Chemical Physics, V. I. Goldanskii Moscow J. C. Hardy Chalk River, Canada W. H. Johnson University of Minnesota E. Kashy Michigan State University Orsay, France R. Klapisch J. A. Nolen, Jr. Michigan State University R. G. H. Robertson Michigan State University E. Roeckl G. S. I., Darmstadt B. N. Taylor National Bureau of Standards O. Schult IKF, Julich A. H. Wapstra IFO, Amsterdam N. Zeldes Racah Institute, Jerusalem The conference was a little different from the preceding one (in Paris, 1975) in that the fundamental constant aspects were limited to those directly related to atomic masses. The gap is to be filled by the second International Conference on Precision Measurement and Fundamental Constants which is now scheduled for June 1981 in Gaithersburg, Maryland. Only one of the seven sessions in this conference was devoted to fundamental constant determina- tions. The conference was very strongly supported by the Department of Energy, the National Science Foundation, and the International Union of Pure and Applied Physics.

Spis treści

Session I Studies of Isotopes Produced by Nuclear Reactions.- Studies of Isospin Quintets and Neutron-Deficient Indium Isotopes with the On-Line Mass Analysis System Rama.- Mass Measurements of Proton-Rich Nuclei and Exotic Spectroscopy.- Masses of Medium Weight Nuclei by Transfer Reactions.- Mass of 9C.- Mass Measurements Using Exotic Reaction — 48Ca(3He, 11C) 40S.- Mass Measurements with Pion Double Charge Exchange.- Production of New Isotopes by Heavy Ion Fragmentation.- Search for Light Neutron-Deficient Nuclei Produced in 800 MeV Proton Spallation Reactions.- Session II Theory of Atomic Masses, First Section.- Atomic Masses — Comments on Macro-Micro Mass-Formulae.- The Shell Correction Method and its Application to Nuclear Masses.- Masses from Inhomogeneous Partial Difference Equations; A Shell-Model Approach for Light and Medium-Heavy Nuclei.- Atomic Mass Data and n-p Residual Interaction in Deformed Nuclei.- Mutual Support of Magicities.- Trends in Nuclear Mass Systematics.- Atomic Mass Formulas with Empirical Shell Terms.- Nuclear Mass Relations and Equations.- Session III Fundamental Constants.- Corrections to the Faraday as Determined by Means of the Silver Coulometer.- The Value of the Faraday Via 4-Aminopyridine.- High Resolution Penning Trap as a Precision Mass-Ratio Spectrometer.- Magnetic Moments of Electrons and Positrons.- Comparison of the K X-Ray Energy Ratios of High Z and Low Z Elements with Relativistic SCF DF Calculations.- Precision Measurements of the Triplet and Singlet Positronium Decay Rates.- Precision Gamma- and X-Ray Energies.- Precise ?-Ray Energies from Radionuclide Decay and the (n,?) Reaction: Revised Values for the Neutron Mass and Selected Neutron Binding Energies.- Session IV Direct Mass Measurements.- The Absolute Measurement of Accelerator Beam Energies.- Absolute Measurement of the Energy of Alpha Particles Emitted by 239Pu.- Atomic Mass Determinations at the University of Manitoba.- Recent Mass Doublet Results from the University of Minnesota.- Considering L.G. Smith’s RF Mass Spectrometer.- Mapping of Nuclear Masses in the Region (N?126, Z?82) from Direct Measurements of Francium Isotopes.- New Mass Spectrometric Measurements on Sodium Isotopes Masses of 31–34Na.- Direct Measurements of Masses of Short Lived Nuclei: 74–79Rb 90–99Rb, 117–124,126Cs and 138,140–147Cs.- Session V Theory of Atomic Masses, Second Section.- Nuclear Masses from First Principles.- Present Status of Hartree-Fock Calculations of Nuclear Binding Energies Using Effective Interaction.- Hartree-Fock Approach to Mass Formula.- Generalized Hartree-Fock and Mass Relationships.- Microscopic Energy Density Mass Formula.- The Phenomenological Shell-Model and the Systematics of Nuclear Masses.- Atomic Masses in Astrophysics.- Session VI Studies of Isotopes with On-Line Mass Separators.- Alpha Decay of Neutron-Deficient Isotopes Studied at GSI Darmstadt.- Masses of Very Neutron Deficient Nuclides in the Tin Region.- Alpha-Decay Systematics for Elements with 50 Measurements of Q? for Neutron-Deficient Nuclei with A~80.- Experimental Beta-Decay Energies of Neutron-Rich Isotopes of I, Xe, Ce, and Pr.- 151Pr, 153Nd and 153Pm as New Isotopes Obtained at SIRIUS.- Session VII Summaries.- Gamma-Ray Energy Calibration Standards.- Comparison of Precision Mass Measurements of Light Isotopes.- Progress and Future of Mass Measurements Among Nuclei Far From ?-Stability.- Status of the Fundamental Constants.- Citation Counts for Tables.- Progress in Atomic Mass Determinations Since 1977.