Preprint

PUBDB-2024-07865

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the EFT validity for Drell-Yan tails at the LHC

Allwicher, L. (Corresponding author)DESY* ; Faroughy, D. A. ; Martines, M. ; Sumensari, O. ; Wilsch, F.

2024

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Please use a persistent id in citations: doi:10.3204/PUBDB-2024-07865

Report No.: DESY-24-217; P3H-24-094; TTK-24-53; arXiv:2412.14162

Abstract: In this article, we examine the validity range of the Effective Field Theory (EFT) description of high-energy Drell-Yan processes at the LHC. To this purpose, we consider explicit mediators that contribute to these processes in the $s$- and $t$-channels, comparing their effects in Drell-Yan distributions with the ones obtained by matching onto the corresponding EFT. We determine the conditions for the EFT results to accurately describe these scenarios. In particular, we explore the impact of including dimension-eight $(d=8)$ operators in the faster convergence of the EFT series, at the analytical and numerical level, considering contributions to the cross section up to the square of $d=8$ EFT operator insertions. Moreover, we discuss the possible implications of clipping LHC data and illustrate results for a specific New-Physics scenario motivated by low-energy flavor data.

Note: 15 pages, 4 figures

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. ASYMMETRY - Essential Asymmetries of Nature (101086085) (101086085)
3. HIDDeN - Hunting Invisibles: Dark sectors, Dark matter and Neutrinos (860881) (860881)
4. DFG project G:(GEPRIS)396021762 - TRR 257: Phänomenologische Elementarteilchenphysik nach der Higgs-Entdeckung (396021762) (396021762)
5. DFG project G:(GEPRIS)390833306 - EXC 2121: Quantum Universe (390833306) (390833306)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
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