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Equation 3 · Part 1 · Nucleosynthesis Is Descent With Modification

Symbol tau_β^-

τβ−\tau_{\beta^-}
τβ−\tau_{\beta^-}

What this part means

that nucleus’s beta-decay half-life.

Its job in the formula

tau_β^- is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Where the article explains it

where τn\tau_n is the mean waiting time between successive neutron captures on a given nucleus and τβ−\tau_{\beta^-} is that nucleus’s beta-decay half-life.

The passage around this formula

where τn\tau_n is the mean waiting time between successive neutron captures on a given nucleus and τβ−\tau_{\beta^-} is that nucleus’s beta-decay half-life. Because the s-process obeys this inequality, its reaction path never strays far from the valley of nuclear stability: a nucleus captures a neutron, and if the product is unstable it decays back toward stability long before it can capture another neutron and be pushed further away [ 7 ] .

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Learn the underlying idea

A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the surrounding passage

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