中法核工程与技术学院核声论坛（总第214期）

Abstract:

Several experimental results in neutrino physics cannot be explained in the standard framework; the most famous are the LSND/MiniBooNE anomaly, the reactor neutrino anomaly, and the Gallium anomaly. For some of them (such as the reactor neutrino anomaly), a reasonable explanation has been found recently, while others are still an open puzzle. I will give a brief review, discussing the possible explanations and the issues that are still unsolved. 

In particular, I will focus on the Gallium anomaly, which was discovered almost 30 years ago. No solution to this problem seems to be in sight: any possible explanation that has been proposed so far is either in severe tension with other experimental results, it requires new physics, or both. One of the main issues is that, so far, it has been observed only using Ga detectors. It is possible, however, to study this anomaly in liquid scintillators using a different detection method, namely, electron-neutrino scattering. In this way, if the anomaly is still present, we could exclude any explanation related to the detection; otherwise, we would know where its cause lies. I will discuss the possibility of running such an experiment using detectors already operative or under construction in China, such as JUNO or JNE.

About the speaker：

Emilio Ciuffoli received his Ph.D. from the University of Pisa and he is currently an associate professor at the Institute of Modern Physics, in Lanzhou. He worked on several topics related to neutrino physics, in particular mass ordering determination (including the statistical issues related), sterile neutrinos, and CP-violation determination. He is currently studying if, how, and when quantum decoherence can affect the oscillation probability. He is also working on the neutrinoless double beta decay experiment NvDEx.