Abstract
The 14C/12C ratio in 4.8 m3 of high-purity liquid scintillator was measured at (1.94 ± 0.09) × 10-18, the lowest 14C abundance ever measured. At this level the spectroscopy of low-energy solar neutrinos, in particular a measurement of the 7Be neutrino flux, will not be obstructed by the 14C β decay intrinsic to a liquid scintillator detector. A comprehensive study of the deviation of the shape of the 14C β spectrum from the allowed statistical shape reveals consistent results with recent observations and calculations. Possible origins of the 14C in the liquid scintillator are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 349-358 |
| Number of pages | 10 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 422 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 12 Mar 1998 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the Istituto Nazionale di Fisica Nucleare (INFN), Italy, the Bundesministerium für Bildung und Forschung (BMBF), Germany, the Deutsche Forschungsgemeinschaft (DFG), Germany, and by the National Science Foundation (NSF), USA.
Funding
This work was supported by the Istituto Nazionale di Fisica Nucleare (INFN), Italy, the Bundesministerium für Bildung und Forschung (BMBF), Germany, the Deutsche Forschungsgemeinschaft (DFG), Germany, and by the National Science Foundation (NSF), USA.
| Funders |
|---|
| National Science Foundation |
| Deutsche Forschungsgemeinschaft |
| Bundesministerium für Bildung und Forschung |
| Instituto Nazionale di Fisica Nucleare |
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