Third Spectroscopy with a hint of superstrings

New regularities found in the pseudoscalar meson octet are reported. They invite to reconsider models where elementary fermions and composite QCD open strings can be grouped in common supermultiplets. It is proven that, with fermions having the standard model charges, such grouping needs at least three families.Comment: 6 pages, some typos correcte

On the distribution of exponential functionals for Levy processes with jumps of rational transform

We derive explicit formulas for the Mellin transform and the distribution of the exponential functional for Levy processes with rational Laplace exponent. This extends recent results by Cai and Kou on the processes with hyper-exponential jumps [N. Cai and S. Kou "Prising Asian options under a general jump diffusion model", (2010)].Comment: 11 page