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arXiv · 2512.07630

Limits on the diffractive mass in strong coherent $\gamma^*$-nucleus scattering

A. H. Mueller
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Abstract

An evolution equation for diffractive production with a definite rapidity gap is given. Coherent $\gamma^*A$ collisions in the unitarity (saturation) region are studied with the conclusion that the diffractive mass is always on the order of the $\gamma^*$ virtuality, $Q$, when the scattering is strong. Deep in the saturation region diffractive masses significantly greater than $Q$ are strongly suppressed by a Levin-Tuchin mechanism.

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A. H. Mueller. 2025-12-08. Limits on the diffractive mass in strong coherent $\gamma^*$-nucleus scattering. https://arxiv.org/abs/2512.07630

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