I. The Mists of Scotland S25 II. ‘‘Cosmic Rays Go Downward, Dr. Anderson’’ S25 III. On Making a Particle Take a Photograph of Itself S26 IV. The Slow Discovery of the Mesotron S27 V. The Mesotron is Not the Yukon S28 VI. ‘‘Even a Theoretician Might be Able To Do It’’ S28 VII. The Reservoir of Ideas Runneth Over S29 VIII. ‘‘There is No Excellent Beauty That Hath Not Some Strangeness in the Propo...

We revisit the problem of decay of a metastable vacuum induced by the presence of a particle. For the bosons of the 'master field' the problem is solved in any number of dimensions in terms of the spontaneous decay rate of the false vacuum, while for a fermion we find a closed expression for the decay rate in (1+1) dimensions. It is shown that in the (1+1) dimensional case an infrared problem o...

The Kerr-Schild (KS) geometry is linked tightly with the auxiliary flat Minkowski background. Nevertheless, it describes many curved spacetimes and the related physical models, starting from cosmology and black holes to the microworld of the spinning elementary particles and the prequantum structure of vacuum fluctuations. We consider here a KS model of the Bubble Universe – a semi-closed Unive...

Since the particles such as molecules, atoms and nuclei are composite particles, it is important to recognize that physics must be invariant for the composite particles and their constituent particles, this requirement is called particle invariance in this paper. But difficulties arise immediately because for fermion we use Dirac equation, for meson we use Klein-Gordon equation and for classica...

Since particles such as molecules, atoms and nuclei are composite particles, it is important to recognize that physics must be invariant for the composite particles and their constituent particles, this requirement is called particle invariance in this paper. But difficulties arise immediately because for fermion we use the Dirac equation, for meson we use the Klein-Gordon equation and for clas...

1. Abstract The most fundamental to the elementary particle is the mass they posses and it would be of importance to explore a possible relationship amongst their masses. Here, an attempt is made to investigate this important aspect irrespective of their nature or scheme of classification. We show that there exists a striking tendency for successive mass differences between elementary particles...