High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Theory (hep-th)
journal:
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date:
2023-12-10 00:00:00
Abstract
We show that the Drell-Yan shape transverse-momentum dependent soft factor in the exponential regulator allows below-threshold (Euclidean) parametric-space representation and can be calculated without cut, to all orders in perturbation theory. Moreover, it is identical to another soft factor with natural interpretation as a space-like form factor.