It is shown that hypothetical dualism of spacetime could give rise to the pattern observed in the properties of the fundamental fermions. By guessing at the basic symmetries of space that underlie the properties of the simplest possible (primitive) particle it is found that these symmetries imply the existence of a series of structures – equilibrium configurations of primitive particles – whith...

This paper describes a 3D template-based tracking method that allows simultaneous tracking of multiple objects of different type. The assumption is that movements of all objects are constrained to a ground plane so that the tracking functionality can be accomplished using just one properly calibrated camera. The tracking algorithm is based on particle filtering where each particle represents on...

We investigate four key issues with using a nonzero weak value of the spatial projection operator to infer past path an individual quantum particle. First, we note that measurements disturb system, so any approach relying on such perturbation determine location particle describes state disturbed not hypothetical undisturbed system. Secondly, even assuming no disturbance, there is reason associa...

We deal with extensions of the Standard Model by adding horizontal interactions between particle generations. We calculate two loop corrections caused by the presence of coupling between hypothetical horizontal gauge bosons and matter field, both at low and high energy. It is proved numerically that the coupling of such extra bosons does not affect the positive features of unified and extended ...

Magnetic monopoles form an inspiring chapter of theoretical physics, covering a variety of surprising subjects. We review their role in nonabelian gauge theories. An exposé of exquisite physics derived from a hypothetical particle species, because the fact remains that in spite of ever more tempting arguments from theory, monopoles have never reared their head in experiment. For many relevant p...

We report on a possible application of the HBT phenomenon in testing the existence of two hypothetical phenomena. First, it is argued that the existence of a rapidly developing parton cascade in the earliest stages of a high energy nuclear collision process can be tested by studying two–photon HBT correlations over a wide longitudinal momentum scale – corresponding to the early photon emission ...

After a brief review of the muon g−2 status, we discuss hypothetical errors in the Standard Model prediction that could explain the present discrepancy with the experimental value. None of them looks likely. In particular, an hypothetical increase of the hadroproduction cross section in low-energy e+e− collisions could bridge the muon g−2 discrepancy, but is shown to be unlikely in view of curr...

A review is given of the status of hypotheses about various undiscovered particles. Magnetic monopoles, intermediate bosons, heavy leptons, scalar particles, quarks, tachyons and gravitons are discussed, along with speculations about the newly discovered neutral mesons. This review was completed in December 1974. Rep. Prog. Phys. 1975 38 731-770