Grooming at the cusp: all-orders predictions for the transition region of jet groomers

Author:

Benkendorfer Kees,Larkoski Andrew J.ORCID

Abstract

Abstract Jet grooming has emerged as a necessary and vital tool for mitigating contamination radiation in jets. The additional restrictions on emissions imposed by the groomer can result in non-smooth behavior of resulting fixed-order distributions of observables measured on groomed jets. As a concrete example, we study the cusp in the hemisphere mass distribution of e+e hadrons events groomed with soft drop. We identify the leading emissions that contribute in the region about the cusp and formulate an all-orders factorization theorem that describes how the cusp is resolved through arbitrary strongly-ordered soft and collinear emissions. The factorization theorem exhibits numerous novel features such as contributions from collinear modes that can cross hemisphere boundaries as well as requiring explicit subtraction of the limit in which resolved emissions become collinear to the hard core. We present resummation of the cusp region through next-to-leading logarithmic accuracy and describe how it can be matched with established factorization theorems that describe other groomed phase space regions.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. 50 Years of quantum chromodynamics;The European Physical Journal C;2023-12-12

2. Pileup and Infrared Radiation Annihilation (PIRANHA): a paradigm for continuous jet grooming;Journal of High Energy Physics;2023-09-22

3. The catchment area of groomed jets at NNLL;Journal of High Energy Physics;2023-08-11

4. Prospects for strong coupling measurement at hadron colliders using soft-drop jet mass;Journal of High Energy Physics;2023-04-18

5. Sudakov shoulder resummation for thrust and heavy jet mass;Physical Review D;2022-10-13

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