• DOI:10.1103/PhysRevC.81.034602
• Corpus ID: 118367452

Nuclear physics for geo-neutrino studies

@article{Fiorentini2010NuclearPF,
  title={Nuclear physics for geo-neutrino studies},
  author={Gianni Fiorentini and Aldo Ianni and George Korga and Marcello Lissia and Fabio Mantovani and Lino Miramonti and Lothar Oberauer and Michel Obolensky and O. Yu. Smirnov and Yu. Suvorov},
  journal={Physical Review C},
  year={2010},
  volume={81},
  pages={034602}
}

• G. Fiorentini, A. Ianni, +7 authors Y. Suvorov
• Published 24 August 2009
• Physics
• Physical Review C

Geo-neutrino studies are based on theoretical estimates of geo-neutrino spectra. We propose a method for a direct measurement of the energy distribution of antineutrinos from decays of long-lived radioactive isotopes. We present preliminary results for the geo-neutrinos from {sup 214}Bi decay, a process that accounts for about one-half of the total geo-neutrino signal. The feeding probability of the lowest state of {sup 214}Bi--the most important for geo-neutrino signal--is found to be p{sub 0}=0.177+-0.004 (stat){sub -0.001}{sup +0.003} (sys), under the hypothesis of universal neutrino spectrum shape (UNSS). This value is consistent with the (indirect) estimate of the table of isotopes. We show that achievable larger statistics and reduction of systematics should allow for the testing of possible distortions of the neutrino spectrum from that predicted using the UNSS hypothesis. Implications on the geo-neutrino signal are discussed.