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Volume 375 - 14th International Symposium on Radiative Corrections (RADCOR2019) - Scet
Next-to-leading power threshold factorization for Drell-Yan production
S. Jaskiewicz
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Pre-published on: 2019 December 20
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We present the next-to-leading power (NLP) factorization formula for the $q\bar{q}\to \gamma^*+X$ channel of the Drell-Yan production near the kinematic threshold limit. The formalism used for the computation of next-to-leading power corrections within soft-collinear effective field theory is introduced, we discuss the emergence of new objects, the {\it{NLP collinear functions}}, and define them through an operator matching equation. We review the leading power factorization before extending it to subleading powers. We also present the one-loop result for the newly introduced collinear function, and demonstrate explicitly conceptual issues in performing next-to-leading logarithmic resummation at next-to-leading power.
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