Speaker
Youssef Sarkis Mobarak
(Instituto de Ciencias Nucleares UNAM)
Description
The nuclear recoil ionization efficiency or "quenching factor" (QF) plays a crucial role in low-threshold ionization type detectors used in dark matter searches, CE$\nu$NS detection, and in searches for new physics through this channel. We study the ionization efficiency of nuclear recoil in pure materials using a model based on Lindhard´s theory. We include the effect of atomic binding energy, as well as improved modeling of electronic stopping and other improvements. Our model describes available QF data in silicon and can also accommodate the effects observed in recent germanium data, predicting QF behavior up to the Frenkel pair production energy scale (40 eV)
Authors
Youssef Sarkis Mobarak
(Instituto de Ciencias Nucleares UNAM)
Alexis Aguilar-Arevalo
(Instituto de Ciencias Nucleares, UNAM)
JUAN CARLOS D'OLIVO
(INSTITUTO DE CIENCIAS NUCLEARES, UNAM)
