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Report number arXiv:2003.12421 ; CERN-TH-2020-047 ; ZU-TH 07/20
Title Charm Physics Confronts High-$p_T$ Lepton Tails
Author(s) Fuentes-Martin, Javier (Zurich U.) ; Greljo, Admir (CERN) ; Martin Camalich, Jorge (IAC, La Laguna ; Laguna U., Tenerife) ; Ruiz-Alvarez, Jose David (Antioquia U.)
Imprint 2020-03-27. - 35 p.
Note 34 pages, 7 figures. v2: Improved discussion in 6.2. Typos corrected. References added. Version submitted to JHEP
Subject category hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
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-$p_T$ Drell-Yan data offer competitive constraints on most new physics scenarios. Furthermore, the full set of correlated constraints from $K$, $\pi$ and $\tau$ decays imposed by $SU(2)_L$ gauge invariance is considered. The bounds from $D_{(s)}$ decays, high-$p_T$ lepton tails and $SU(2)_L$ relations chart the space of the SMEFT affecting semi(leptonic) charm flavor transitions.
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 Record created 2020-03-31, last modified 2020-05-20


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