We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors, taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is similar to 3.0 sigma. A fit of the data in terms of neutrino oscillations favors at similar to 2.7 sigma short-baseline electron neutrino disappearance with respect to the null hypothesis of no oscillations.

Statistical significance of the gallium anomaly

LAVEDER, MARCO
2011

Abstract

We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors, taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is similar to 3.0 sigma. A fit of the data in terms of neutrino oscillations favors at similar to 2.7 sigma short-baseline electron neutrino disappearance with respect to the null hypothesis of no oscillations.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2480080
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 396
  • ???jsp.display-item.citation.isi??? 324
social impact