An Easy Experiment to Solve an Old Puzzle

Although the pion and kaon have spin zero, many experiments in the 1950's and 1960's showed that the pion and kaon carry directional information (see Ref. [1]). The probability of statistical fluctuations causing the observed effect is less than 1 in a 1000 in several experiments by different researchers. The problem with these old experiments is that the researchers never varied a parameter and showed that the observed effect varied in a predictable manner. Recently, it has been shown theoretically, that massive vector particles with spin zero can exist[2]. These spin-0 vector particles would be polarized along the direction of their creation, and a magnetic field cannot change that polarization direction. Thus, varying the angle between the polarization vector and the momentum of these charged particles using a magnetic field leads to a simple experimental test with predictable results. [1] W. A. Perkins, "Pion-Muon Asymmetry Revisted," Int. J. Theor. Phys\textbf{. 47} (2008) 1316. [2] W. A. Perkins, "Massive vector particles with spin zero," EPL (Europhysics Letters) \textbf{114} (2016) 41002.