Hadron physics with Simon

TL;DR: Eidelman et al. as discussed by the authors showed that the hadronic cross sections in the electron-positron annihilation will fall very fast with the energy increase due to form factors, and the observation of the large multi-body cross section in the energy range 1.1 − 1.4 GeV was quite important.

Abstract: Simon (Semyon) Eidelman was born in Odessa in 1948, August 2. At the age of 15 he went to Novosibirsk, to enter to a special high school for students gifted in natural sciences (now Specialized Educational Scientific Center [1]). He then studied physics at Novosibirsk State University [2]. Being undergraduate student, in 1968, Simon joined the Budker Institute of Nuclear physics [3] and remained there his entire professional life. Simon’s scientific activity during all his life was mostly connected with experiments at electron-positron colliders. He started his career by participating in the discovery of multihadron events at VEPP-2, a pioneering e+e− collider [4]. That time the quark model was not firmly established yet and many theorists expected that hadronic cross sections in the electron-positron annihilation will fall very fast with the energy increase due to form factors. So, the observation of the large multi-body cross section [5] in the energy range 1.1 – 1.4 GeV shown in the Fig. 2 was quite important.