Cloud Chamber Observations of Cosmic Rays at 4300 Meters Elevation and Near Sea-Level

Some Atomic Particles and the Meson

“…Announcement of this was made in 1936. 7 It was not long before various investigators reported similar findings and it was plain that a new sub-atomic particle had swum into the ken of physicists. Since its mass lay between that of a proton and that of an electron, the lightest particle known, it was called a mesotron (from the Greek word mesos, middle).…”

Cosmic rays: the centenary of their discovery

“…have been discovered some 3 years earlier by Bothe and Becker. The muon, too, could have been discovered earlier (by Blackett, and, no doubt others) but pride of place goes to Anderson and Neddermeyer [8]. Once more, superlative cloud-chamber technique was responsible.…”

Тяжёлые Частицы И Ядерные Расщепления ("Звёзды") В Космических Лучах

“…14 .' 6 . Мы примем для опреде-лённости приведённое значение интенсивности мягкой компоненты, п частицам " ..... _, равное 2 -на высоте 3400 м. В этом случае поток медлен-ных протонов меньше потока мягких частиц в 300 раз [см.…”