Charm Physics Confronts High-$p_T$ Lepton Tails
Abstract
We present a systematic survey of possible short-distance new-physics effects in (semi)leptonic charged- and neutral-current charmed meson decays. Using the Standard Model Effective Field Theory (SMEFT) to analyze the most relevant experimental data at low and high energies, we demonstrate a striking complementarity between charm decays and high invariant mass lepton tails at the LHC. Interestingly enough, high- Drell-Yan data offer competitive constraints on most new physics scenarios. Furthermore, the full set of correlated constraints from , and decays imposed by gauge invariance is considered. The bounds from decays, high- lepton tails and relations chart the space of the SMEFT affecting semi(leptonic) charm flavor transitions.
Keywords
Cite
@article{arxiv.2003.12421,
title = {Charm Physics Confronts High-$p_T$ Lepton Tails},
author = {Javier Fuentes-Martin and Admir Greljo and Jorge Martin Camalich and Jose David Ruiz-Alvarez},
journal= {arXiv preprint arXiv:2003.12421},
year = {2020}
}
Comments
34 pages, 7 figures. v2: Improved discussion in 6.2. Typos corrected. References added. Version submitted to JHEP