[en] The author gives a personal view of the present conference and outlines the various applications of μSR. (Auth.)

[en] Topics covered in this issue include observation of decoupled diagmagnetic muon states in alkali halides by muon spin resonance, diffusion properties of the muon-produced soliton in trans-polyacetylene, pulsed muon spin resonance measurement of negative muon depolarization in muonic ¹³C and ¹⁴N, muonium to diamagnetic muon transition in KCl and NaCl revealed by time-differential muon spin resonance, recent topics in muon spin polarization phenomena and μSR experiments, observation of muon-fluorine ''hydrogen'' bonding in ionic crystals, a spin rotator for muon-plus beams on the new M20 muon channel at TRIUMF, and resolved nuclear hyperfine structure of muonated free radicals using level crossing spectroscopy

[en] Information on hydrogen radical and organic radical chemistry are obtained by muomium chemistry. Muonic signals (diamagnetic, muomium and muonic radicals) are detected in pure water and organic solutions

[en] Muon spin rotation studies can in principle determine the formation mechanism of muonic free radicals. Evidence for mechanisms involving intermediate radical anion and muonic cation states is presented

[en] A review is presented of the muon spin rotation technique applied to physics of condensed matter. A systematic comparison is made of the type of information obtained from this technique and from Moessbauer effect

[en] In this summary the author has chosen to examine a few central problems of the science of μSR, to let the readers outside the field catch a glimpse of the excitement of the subject, and to defer matters of science policy to others

[en] A technique is proposed for measuring the diffusion of positive muons in metals, using macroscopic diffusion across plane boundaries. Expressions for the muon asymmetry as a function of time are derived for the configurations suggested. (Auth.)

No abstract available

[en] We present muon spin relaxation measurements performed on crystals of the heavy fermion superconductor UPt₃. In zero applied field, contrary to a previous report, we do not observe an increase of the internal magnetic field in the lower superconducting phase (the B phase). Our result gives an experimental upper bound of the magnetic field that could be associated with the superconducting state. (orig.)

[en] For zero and intermediate applied external fields, the dynamics of the static spin polarization associated with muons which have thermalized in the allowed stopping sites of a given solid is expressed in terms of counter and crystal frame spherical harmonic tensor expansions of the second-rank dynamical motion tensor. Coefficients of these expansions, usually termed relaxation functions, are related to observable longitudinal, co-planar transverse and perpendicular transverse relaxation functions which can be measured simultaneously using the skewed field technique. Since the motion tensor is of second rank then, in general, nine observable relaxation functions exist. This stands in contrast to the traditional high-field longitudinal and transverse techniques employed in muon spin rotation (μSR) experiments wherein only three of the nine observable relaxation functions are non-zero. These traditional experiments, usually employing different apparatus, are carried out separately. Even when the other six relaxation functions are identically zero in zero and intermediate applied field experiments, they still contain information about the stopping probabilities or the dynamical symmetries associated with the muon sites, that is, that such symmetries are not present or that the sites with these symmetries are orientated in such a way that the statistical sums of their relaxation functions are zero. Thus these relaxation functions can then be used as experimental confirmation of expected stopping probabilities associated with one type of site for which there are different orientations or for aligned sites with appropriate dynamical symmetries. (orig.)