Gudrun Hiller

collaborators

4 papers

hep-ph2025

Probing invisible particles with charm

Gudrun Hiller, Dominik Suelmann

We point out opportunities to probe invisible particles, left- and right-handed neutrinos, axion-like particles (ALPs) and dark photons $(Z^{'})$ with rare decays of charm hadro…

hep-ph2025

New opportunities for rare charm from $Z \to c c ˉ$ decays

Angelo Di Canto, Tabea Hacheney, Gudrun Hiller +4

We analyze the potential of rare charm decays as probes of new physics at a high-luminosity flavor facility operating at the $Z$ pole, such as the FCC-ee or CEPC. In particular, we…

hep-ph2025

BSM reach of rare charm decays, including the rising star $Λ_{c} \to p μ^{+} μ^{-}$

Hector Gisbert, Gudrun Hiller, Dominik Suelmann

We perform the first global fit of rare charm transitions using recent data on $D^{0} \to μ^{+} μ^{-}$ , $D^{+} \to π^{+} μ^{+} μ^{-}$ , $Λ_{c} \to p μ^{+} μ^{-}$ and $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ decays, including angul…

hep-ph2024

Effective field theory analysis of rare $∣Δ c ∣ = ∣Δ u ∣ = 1$ charm decays

Hector Gisbert, Gudrun Hiller, Dominik Suelmann

We perform a global analysis of $∣Δ c ∣ = ∣Δ u ∣ = 1$ transitions using recent data on $D^{0} \to μ^{+} μ^{-}$ , $D^{+} \to π^{+} μ^{+} μ^{-}$ , $Λ_{c} \to p μ^{+} μ^{-}$ , and $D^{0} \to π^{+} π^{-} μ^{+} μ^{-}$ decays…

Probing invisible particles with charm

New opportunities for rare charm from Z→ccˉ decays

BSM reach of rare charm decays, including the rising star Λc​→pμ+μ−

Effective field theory analysis of rare ∣Δc∣=∣Δu∣=1 charm decays

New opportunities for rare charm from $Z \to c c ˉ$ decays

BSM reach of rare charm decays, including the rising star $Λ_{c} \to p μ^{+} μ^{-}$

Effective field theory analysis of rare $∣Δ c ∣ = ∣Δ u ∣ = 1$ charm decays