PT Journal
AU Candela, PM
   De Romeri, V
   Papoulias, DK
TI COHERENT production of a dark fermion
SO Physical Review D
JI Phys. Rev. D
PY 2023
BP 055001
EP 19pp
VL 108
IS 5
DI 10.1103/PhysRevD.108.055001
LA English
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.
ER