Charm physics confronts high-p T lepton tails
Abstrak
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, π and τ 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.
Topik & Kata Kunci
Penulis (4)
Javier Fuentes-Martín
Admir Greljo
Jorge Martin Camalich
José David Ruiz-Alvarez
Akses Cepat
- Tahun Terbit
- 2020
- Sumber Database
- DOAJ
- DOI
- 10.1007/JHEP11(2020)080
- Akses
- Open Access ✓