PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Quark and Lepton Flavour Physics
Probing Flavor in semileptonic transitions at High-$p_T$
F. Jaffredo*, L. Allwicher, D. Faroughy, O. Sumensari and F. Wilsch
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Pre-published on: December 06, 2022
Published on: June 15, 2023
The Drell-Yan processes $pp\to\ell\nu$ and $pp\to\ell\ell$ at high transverse momentum can provide important probes of semileptonic transitions that are complementary to low-energy flavor physics observables. We parametrize possible New Physics (NP) contributions to these processes in terms of form-factors, and derive the corresponding bounds by recasting the latest ATLAS and CMS run 2 searches for mono- and di-lepton resonances. Moreover, we study the validity limit of the Standard Model Effective Field Theory (SMEFT) in this regime by comparing the limits obtained for specific tree-level mediators and their EFT equivalent. Both analyses are performed using {\tt HighPT}, a new {\tt Mathematica} package for automatic extraction of high-$p_T$ bounds.
DOI: https://doi.org/10.22323/1.414.0724
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