TY - JOUR AU - Candela, P. M. AU - De Romeri, V. AU - Papoulias, D. K. PY - 2023 DA - 2023// TI - COHERENT production of a dark fermion T2 - Phys. Rev. D JO - Physical Review D SP - 055001 EP - 19pp VL - 108 IS - 5 PB - Amer Physical Soc AB - We consider the possible production of a new MeV-scale fermion at the COHERENT experiment. The new fermion, belonging to a dark sector, can be produced through the up-scattering process of neutrinos off the nuclei and the electrons of the detector material, via the exchange of a light vector or scalar mediator. We perform a detailed statistical analysis of the combined COHERENT CsI and LAr datasets and obtain up-to-date constraints on the couplings and masses of the dark fermion and mediators. We finally briefly comment about the stability of the dark fermion. SN - 2470-0010 UR - https://arxiv.org/abs/2305.03341 UR - https://doi.org/10.1103/PhysRevD.108.055001 DO - 10.1103/PhysRevD.108.055001 LA - English N1 - WOS:001071136200002 ID - Candela_etal2023 ER -