5 papers
Heavy neutral leptons and top quarks in effective field theory
Rebeca Beltrán, Giovanna Cottin, Julian Günther +3
We study the phenomenology of heavy neutral leptons (HNLs) at the LHC in effective field theory, concentrating on operators with top quarks. Depending on the operator choice…
Probing light sterile neutrinos in left-right symmetric models with displaced vertices and neutrinoless double beta decay
Jordy de Vries, Herbi K. Dreiner, Jelle Groot +2
An investigation of relatively light (GeV-scale), long-lived right-handed neutrinos is performed within minimal left-right symmetric models using the neutrino-extended Standard Mod…
The decay at Belle II and a massless bino in R-parity-violating supersymmetry
Zeren Simon Wang, Herbert K. Dreiner, Julian Y. Günther
Recently, \texttt{Belle II} announced evidence for the decay at the significance, and measured the corresponding decay branching ratio to be $2.7\…
A C++ program for estimating detector sensitivities to long-lived particles: Displaced Decay Counter
Florian Domingo, Julian Günther, Jong Soo Kim +1
A series of far-detector programs have been proposed for operation at various interaction points of the Large Hadron Collider during the upcoming runs. Investigating the potential…
Heavy neutral leptons from kaons in effective field theory
Rebeca Beltrán, Julian Günther, Martin Hirsch +2
In the framework of the low-energy effective theory containing in addition to the Standard Model fields heavy neutral leptons (HNLs), we compute the decay rates of neutral and char…