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The passage from Shifman's lectures reads: "By the way, about penguins. From time to time students ask about how this word could possibly penetrate high energy physics. This is a funny story, indeed. The first paper where the graphs that are now called penguins were considered in the weak decays appeared in JETP Letters in 1975, and there they did not look like penguins at all. Later on they were made look line penguins [figure: a Feynman diagram that sort of looks like a penguin] and called penguins by John Ellis. Here is his story as he recollects it himself."

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The passage from Shifman's lectures reads: "By the way, about penguins. From time to time students ask about how this word could possibly penetrate high energy physics. This is a funny story, indeed. The first paper where the graphs that are now called penguins were considered in the weak decays appeared in JETP Letters in 1975, and there they did not look like penguins at all. Later on they were made look line penguins [figure: a Feynman diagram that sort of looks like a penguin] and called penguins by John Ellis. Here is his story as he recollects it himself."
https://files.mastodon.social/media_attachments/files/110/125/077/633/342/358/original/7c31c3582e16df09.jpeg

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Robert McNees (mcnees@mastodon.social)'s status on Saturday, 01-Apr-2023 18:55:35 UTC Robert McNees
in reply to

Now, this is not as well known, but a paper that Mary Katharine Gaillard wrote with Ellis and Chanowitz led to the work that led to the bet that led to Feynman diagrams that look like… penguins.
https://arxiv.org/abs/hep-ph/9510397

In conversation Saturday, 01-Apr-2023 18:55:35 UTC from mastodon.social permalink