تقرير
Resummation of Next-to-Leading Non-Global Logarithms at the LHC
| العنوان: | Resummation of Next-to-Leading Non-Global Logarithms at the LHC |
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| المؤلفون: | Becher, Thomas, Schalch, Nicolas, Xu, Xiaofeng |
| المصدر: | Phys.Rev.Lett. 132 (2024) 8, 081602 |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | In cross sections with angular cuts, an intricate pattern of enhanced higher-order corrections known as non-global logarithms arises. The leading logarithmic terms were computed numerically two decades ago, but the resummation of subleading non-global logarithms remained a challenge that we solve in this Letter using renormalization group methods in effective field theory. To achieve next-to-leading logarithmic accuracy, we implement the two-loop anomalous dimension governing the resummation of non-global logarithms into a large-$N_c$ parton shower framework, together with one-loop matching corrections. As a first application, we study the interjet energy flow in $e^+e^-$ annihilation into two jets. We then present, for the first time, resummed predictions at next-to-leading logarithmic accuracy for a gap-between-jets observable at hadron colliders. Comment: 13 pages, 5 figures; v2: journal version, correction in (9), updated results with improved treatment of n_f terms |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevLett.132.081602 |
| الوصول الحر: | http://arxiv.org/abs/2307.02283Test |
| رقم الانضمام: | edsarx.2307.02283 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevLett.132.081602 |
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