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Equation 2 · Nucleosynthesis Is Descent With Modification

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τn\tau_n

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the mean waiting time between successive neutron captures on a given nucleus. Read the equation part by part below; each part has a contextual explanation and a link to its mathematical background.

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τn\tau_n

Symbol tau_n

the mean waiting time between successive neutron captures on a given nucleus.

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subscript

subscript

The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.

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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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