An exact expression for the probability of inversion of a large spin is established in the form of an asymptotic expansion in the series of Bessel functions with orders belonging to an arithmetic progression. Based on the new asymptotic expansion, a formula for the inversion time of the spin is derived.

中文翻译：

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一系列贝塞尔函数中渐近展开形式的大自旋的反转概率

以一系列属于算术级数的贝塞尔函数系列中的渐近展开形式，建立了一个大自旋反转概率的精确表达式。基于新的渐近展开，推导了自旋反转时间的公式。