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Helvetica Physica Acta

Helvetica Physica Acta Volume 46 (1973)
Überschrift Seite
Issue 1 _
Association News: Zum 60. Geburtstag von André Mercier _
Association News: Rapport de la session d'automne de la Société Suisse de Physique à Lucerne, du 13 et 14 octobre 1972 1
Article: Etude de l'interaction hyperfine de 166Er dilué dans des cristaux des éthylsulfates de lanthane et d'yttrium par la méthode des corrélations directionnelles γγ 66
Article: Gamma decay properties of 3^- levels in even-even nuclei 99
Article: Appareillage pour l'etude de la polarisation nucléaire de l'helium-3 par pompage optique et de sa relaxation 129
Article: Relaxation nucléaire de He^3 gazeux par des surfaces 147
Rubric: Zusammenfassungen der letzten eingegangenen Arbeiten = Résumés des derniers articles reçus 160
Issue 2 161
Article: A new interpretation of the clock paradox in special relativity 161
Article: Calibration of the isomer shift of 57Fe 165
Article: Behaviour of a single ground state system in the presence of an external magnetic field 180
Article: The maximal kinematical invariance group of the harmonic oscillator 191
Article: On the mechanism of the single-nucleon knock-out reaction induced by pions at medium energies 201
Article: Stability of the movement of a planar interphase boundary between normal and superconducting domains 213
Article: Does the Born-Oppenheimer approximation work? 230
Article: Die Trägheitswelt der Linearen Feldtheorie 235
Article: Analytic representations of the conformal group in four and five dimensions connected with differential equations 253
Association News: John Eggert-Preis-Stiftung 273
Erratum: Erratum 274
Rubric: Zusammenfassungen der letzten eingegangenen Arbeiten = Résumés des derniers articles reçus 275
Issue 3 277
Article: Euclidean Fermi fields and a Feynman-Kac formula for Boson-Fermion models 277
Article: Decay formula and fission barrier 303
Article: Relativistic dynamics 316
Article: Comment on a paper of Amrein, Martin, and Misra 327
Article: EPR von Fe^3+ in SrTiO3 unter einachsigem <100> Druck 331
Article: Bestimmung einer oberen Grenze für die radiative Zerfallsbreite Γ(K^*+_890 →K^+γ) in der kohärenten Produktion an Kernen 340
Article: On factors of type II and quantum mechanics 371
Rubric: Zusammenfassungen der letzten eingegangenen Arbeiten = Résumés des derniers articles reçus 388
Issue 4 389
Association News: Rapport de la session de printemps de la Société Suisse de Physique à Neuchâtel, les 4 et 5 mai 1973 389
Article: Phonon-hydrodynamic description of structural phase transitions 480
Article: Conformal group → Schrödinger group → dynamical group : the maximal kinematical group of the massive Schrödinger particle 496
Article: The scattering matrix for some non-polynomial interactions. I 504
Article: The scattering matrix for some non-polynomial interactions. II 535
Article: Analysis of a non-resonant maser model 546
Rubric: Zusammenfassungen der letzten eingegangenen Arbeiten = Résumés des derniers articles reçus 572
Issue 5 573
Article: Phase transitions in reservoir-driven open systems with applications to lasers and superconductors 573
Article: Proton-Proton Streuung im Energiegebiet von 500 bis 2000 keV : experimentelle Technik 604
Article: Proton-Proton Streuung im Energiegebiet von 500-2000 keV : Resultate und Auswertung 626
Article: On the characterization of bound states and scattering states in quantum mechanics 635
Article: Sur la détermination des phases doublets pour la diffusion n-d à basse énergie 659
Article: (n-γ) directional correlation in the reaction 20Ne(d,nγ)^21Na (E^* = 330 keV) 670
Article: Detection by Hanle effect of the alignment-orientation coupling process induced by the Stark effect 680
Article: Positivity of the Hamiltonian semigroup and the construction of Euclidean region fields 686
Article: Entropy of a type-II superconductor close to the critical temperature 697
Article: Total spontaneous fission half-life, mass and charge distribution of 252Cf 720
Article: Total spontaneous fission half-lives, kinetic energy and mass yield spectra of 250Cm, 254Cf and 258Fm 724
Article: The stress dependence of the paraelectric susceptibility of KCl : OH^- 729
Issue 6 735
Article: Mössbauereffekt an 195Pt 735
Article: Elastic constants of TbAl2 770
Article: Precision measurement of the magnetic moment of the proton in units of the nuclear magneton with high velocity particles 772
Article: An analysis of the neutrino elastic (ν +n→p+μ^-) events 792
Article: Zustände in 14N und 13C aus der Reaktion 12C(d,p)^13C 807
Article: On the existence of light-like charges in quantum field theory 824
Article: Fluctuations in some mean-field models in quantum statistics 844
Article: The optical absorption produced by small sodium metal particles in sodium chloride 869
Article: Paraelektrisches Verhalten verdünnter Dipolsysteme im Temperaturbereich von 0,025 bis 4,2 K 889
Rubric: Zusammenfassungen der letzten eingegangenen Arbeiten = Résumés des derniers articles reçus 916
Table of Contents 919
Index: Autorenregister = Table des auteurs 927