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Threshold factorization of the Drell-Yan quark-gluon channel and two-loop soft function at next-to-leading power (2023)
Journal Article
Broggio, A., Jaskiewicz, S., & Vernazza, L. (2023). Threshold factorization of the Drell-Yan quark-gluon channel and two-loop soft function at next-to-leading power. Journal of High Energy Physics, 2023(12), Article 28. https://doi.org/10.1007/jhep12%282023%29028

We present a factorization theorem of the partonic Drell-Yan off-diagonal processes gq¯qg→γ∗+X in the kinematic threshold regime z=Q2/ŝ→1 at general subleading powers in the (1 − z) expansion. Focusing on the first order of the expansion (next-to-le... Read More about Threshold factorization of the Drell-Yan quark-gluon channel and two-loop soft function at next-to-leading power.

Next-to-leading power endpoint factorization and resummation for off-diagonal “gluon” thrust (2022)
Journal Article
Beneke, M., Garny, M., Jaskiewicz, S., Strohm, J., Szafron, R., Vernazza, L., & Wang, J. (2022). Next-to-leading power endpoint factorization and resummation for off-diagonal “gluon” thrust. Journal of High Energy Physics, 2022(7), Article 144. https://doi.org/10.1007/jhep07%282022%29144

The lack of convergence of the convolution integrals appearing in next-to-leading-power (NLP) factorization theorems prevents the applications of existing methods to resum power-suppressed large logarithmic corrections in collider physics. We conside... Read More about Next-to-leading power endpoint factorization and resummation for off-diagonal “gluon” thrust.

Next-to-leading power two-loop soft functions for the Drell-Yan process at threshold (2021)
Journal Article
Broggio, A., Jaskiewicz, S., & Vernazza, L. (2021). Next-to-leading power two-loop soft functions for the Drell-Yan process at threshold. Journal of High Energy Physics, 2021(10), https://doi.org/10.1007/jhep10%282021%29061

We calculate the generalized soft functions at O(α2s) at next-to-leading power accuracy for the Drell-Yan process at threshold. The operator definitions of these objects contain explicit insertions of soft gauge and matter fields, giving rise to a de... Read More about Next-to-leading power two-loop soft functions for the Drell-Yan process at threshold.