17–21 Jul 2023
Hörsaalzentrum Unteres Schloss
Europe/Berlin timezone

Probing invisibles with rare charm decays

17 Jul 2023, 14:00
20m
US-C 116 (Hörsaalzentrum Unteres Schloss)

US-C 116

Hörsaalzentrum Unteres Schloss

US-C, Kölner Str. 41, 57072 Siegen
contributed parallel talk decays Parallel A

Speaker

Dominik Suelmann (TU Dortmund)

Description

We study rare charm decays with missing energy to probe light degrees of freedom.
Specifically, we investigate axion-like particles and light $Z^\prime$ bosons with dark fermions.
We also consider EFT models with light neutrinos of both chiralities.
Observables of both charm mesons and baryons are examined to assess their sensitivity and potential to probe NP.
We find that the missing energy distribution of $\Lambda_c \to p \nu\bar\nu$ can signal the presence of right-handed neutrinos in addition to the left-handed ones of the SM.
We further constrain the NP models by utilizing the upper limits on $D^0\to invisible$ and $D^0\to\pi^0 + invisible$ and work out predictions for 2-body and 3-body kinematics of
$\Lambda_c \to p + invisible$.

Consent I consent to recording/broadcasting my presentation.

Primary authors

Dominik Suelmann (TU Dortmund) Prof. Gudrun Hiller (TU Dortmund)

Presentation materials