Outputs (4)

Constraining light thermal inelastic dark matter with NA64 (2023)
Journal Article
Mongillo, M., Abdullahi, A., Banto Oberhauser, B., Crivelli, P., Hostert, M., Massaro, D., …Pascoli, S. (2023). Constraining light thermal inelastic dark matter with NA64. The European Physical Journal C, 83(5), Article 391. https://doi.org/10.1140/epjc/s10052-023-11536-5

A vector portal between the Standard Model and
the dark sector is a predictive and compelling framework
for thermal dark matter. Through co-annihilations, models
of inelastic dark matter (iDM) and inelastic Dirac dark matter (i2DM) can reproduce t... Read More about Constraining light thermal inelastic dark matter with NA64.

The present and future status of heavy neutral leptons (2023)
Journal Article
Abdullahi, A. M., Barham Alzás, P., Batell, B., Beacham, J., Boyarsky, A., Carbajal, S., Chatterjee, A., Crespo-Anadón, J. I., Deppisch, F. F., De Roeck, A., Drewes, M., Martin Gago, A., Gonzalez Suarez, R., Goudzovski, E., Hatzikoutelis, A., Hernandez-Garcia, J., Hostert, M., Hufnagel, M., Ilten, P., Izmaylov, A., …Yu, J. (2023). The present and future status of heavy neutral leptons. Journal of Physics G: Nuclear and Particle Physics, 50(2), Article 020501. https://doi.org/10.1088/1361-6471/ac98f9

The existence of nonzero neutrino masses points to the likely existence of multiple Standard Model neutral fermions. When such states are heavy enough that they cannot be produced in oscillations, they are referred to as heavy neutral leptons (HNLs).... Read More about The present and future status of heavy neutral leptons.

A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar (2021)
Journal Article
Abdullahi, A., Hostert, M., & Pascoli, S. (2021). A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar. Physics Letters B, 820, https://doi.org/10.1016/j.physletb.2021.136531

A recent update from MiniBooNE has strengthened the observed 4.8σexcess of e-like events. Motivated by this and other notable deviations from standard model predictions, such as the muon (g−2), we propose a solution to low energy anomalies through a... Read More about A dark seesaw solution to low energy anomalies: MiniBooNE, the muon (g − 2), and BaBar.

Visible decay of astrophysical neutrinos at IceCube (2020)
Journal Article
Abdullahi, A., & Denton, P. B. (2020). Visible decay of astrophysical neutrinos at IceCube. Physical Review D, 102(2), Article 023018. https://doi.org/10.1103/physrevd.102.023018

Neutrino decay modifies neutrino propagation in a unique way; not only is there flavor changing as there is in neutrino oscillations, there is also energy transport from initial to final neutrinos. The most sensitive direct probe of neutrino decay is... Read More about Visible decay of astrophysical neutrinos at IceCube.