TY  - JOUR
AU  - Gelmini, G. B.
AU  - Takhistov, V.
AU  - Witte, S. J.
PY  - 2019
DA  - 2019//
TI  - Geoneutrinos in large direct detection experiments
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 093009
EP  - 11pp
VL  - 99
IS  - 9
PB  - Amer Physical Soc
AB  - Geoneutrinos can provide a unique insight into Earth's interior, its central engine, and its formation history. We study the detection of geoneutrinos in large direct detection experiments, which has been considered nonfeasible. We compute the geoneutrino-induced electron and nuclear recoil spectra in different materials, under several optimistic assumptions. We identify germanium as the most promising target element due to the low nuclear recoil energy threshold that could be achieved. The minimum exposure required for detection would be O(10) ton-years. The realistic low thresholds achievable in germanium and silicon permit the detection of K-40 geoneutrinos. These are particularly important to determining Earth's formation history, but they are below the kinematic threshold of inverse beta decay, the detection process used in scintillator-based experiments.
SN  - 2470-0010
UR  - https://arxiv.org/abs/1812.05550
UR  - https://doi.org/10.1103/PhysRevD.99.093009
DO  - 10.1103/PhysRevD.99.093009
LA  - English
N1  - WOS:000469022000001
ID  - Gelmini_etal2019
ER  -