Uncovering the Nature of the Weak Interaction
نویسنده
چکیده
The history of the weak interactions may be said to have begun with the discovery of beta-decay by Henri Becquerel at the end of the 19th Century [1]. It is still evolving. Insights are expected from experiments ranging from neutrinoless double beta-decay to giant cosmic ray air showers. It has benefitted greatly from Jim Cronin’s studies of strange particles, including but not limited to his discovery of CP violation with Christenson, Fitch, and Turlay [2]. In a thirty-minute talk (or a written version thereof) it is impossible to do justice to this rich 110-year history. Jim entered the world roughly nine months after Pauli’s December 4, 1930 proposal of the neutrino [3], but was already a practicing physicist when its discovery was announced [4]. I would like to touch upon some high points, paying special heed to the term “uncovering.” Jim has been on the front-line of this effort. The fundamental weak interactions often have been overlaid with strong interactions and kinematic correlations, whose understanding is needed to draw conclusions about the underlying physics. For example:
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