Phrase guide

branching ratio

noun · 1 senses · updated from the 2026-07-25 local source snapshot

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1

noun

Meaning 1

In radioactivity, the portion of all decays that take a given pathway. For example, californium-252 decays by alpha decay ~97% of the time, and by spontaneous fission ~3% of the time; so the branching ratio is about 0.97 in favor of alpha decay, and about 0.03 in favor spontaneous fission.

Definition source: English Wiktionary via Wiktextract

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