γ-3π Coupling Constant in the Veneziano Model

String from Veneziano model

This article is about my memories from the discovery[1, 2, 3, 4] that the Veneziano model[5] described in fact interacting strings. I came to the understanding that the dual or Veneziano model is really a model of strings independently of Susskind[3] and Nambu[4]. A characteristic feature of my approach [1, 2] was that I used thinking of very high order “fishnet” or planar Feynman diagrams as t...

The Euler constant : γ

It is not known if γ is an irrational or a transcendental number. The question of its irrationality has challenged mathematicians since Euler and remains a famous unresolved problem. By computing a large number of digits of γ and using continued fraction expansion, it has been shown that if γ is a rational number p/q then the denominator q must have at least 242080 digits. Even if γ is less fam...

Hadron pair photoproduction within the Veneziano model

We first suppose that low-energy hadron pair photoproduction reactions γ(∗)γ(∗) → hh̄ are dominated by s-channel resonance contributions. Their normalization is then calculated by their correspondence with the Reggeon term in the Regge parametrization of the γh total cross sections. For the case of pp̄, we make use of the measured γp total cross section, and for the case of K+K−, we make use of t...

The strong coupling constant

In this paper we fix our attention, on hadron structure, and show that also the strong interaction strength αS, ordinarily called the “(perturbative) coupling–constant square”, can be evaluated within our theory, and found to decrease (increase) as the “distance” r decreases (increases). This yields both the confinement of the hadron constituents, and their asymptotic freedom: in qualitative ag...

The decay ρ 0 → π + + π − + γ and the coupling constant g ρσγ