TY  - JOUR
AU  - Abdullahi, A. M. et al
AU  - Lopez-Pavon, J.
PY  - 2023
DA  - 2023//
TI  - The present and future status of heavy neutral leptons
T2  - J. Phys. G
JO  - Journal of Physics G
SP  - 020501
EP  - 100pp
VL  - 50
IS  - 2
PB  - IOP Publishing Ltd
KW  - Neutrinos
KW  - beyond the standard model
KW  - sterile neutrinos
AB  - 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). In this white paper, we discuss the present experimental status of HNLs including colliders, beta decay, accelerators, as well as astrophysical and cosmological impacts. We discuss the importance of continuing to search for HNLs, and its potential impact on our understanding of key fundamental questions, and additionally we outline the future prospects for next-generation future experiments or upcoming accelerator run scenarios.
SN  - 0954-3899
UR  - https://arxiv.org/abs/2203.08039
UR  - https://doi.org/10.1088/1361-6471/ac98f9
DO  - 10.1088/1361-6471/ac98f9
LA  - English
N1  - WOS:000918351600001
ID  - Abdullahi+Lopez-Pavon2023
ER  -