Joint transverse momentum and threshold resummation beyond NLL

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• 作者：Gillian Lustermans^a ; ^b ; ^{g.lustermans@uva.nl" class="auth_mail" title="E-mail the corresponding author} ; Wouter J. Waalewijn^a ; ^b ; Lisa Zeune^a
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 November 2016
• 年：2016
• 卷：762
• 期：Complete
• 页码：447-454
• 全文大小：460 K

文摘

To describe the transverse momentum spectrum of heavy color-singlet production, the joint resummation of threshold and transverse momentum logarithms is investigated. We obtain factorization theorems for various kinematic regimes valid to all orders in the strong coupling, using Soft-Collinear Effective Theory. We discuss how these enable resummation and how to combine regimes. The new ingredients in the factorization theorems are calculated at next-to-leading order, and a range of consistency checks is performed. Our framework goes beyond the current next-to-leading logarithmic accuracy (NLL).