Analysis of the Events Recorded by the LVD Neutrino Detector From Large Solar Flares During High Solar Activity

摘要

The results of the analysis of events recorded by the LVD neutrino detector at Gran Sasso Laboratory during the maximum peak of the high solar activity (including the very intense Bastille solar flare) are reported.The analysis of events,candidates as neutrinos,is done by selection of data taking into account the behavior of each scintillation internal counter over a period of 48 hours centred around the solar flare time.After the analysis of the sovrapposition of data related to the 23 solar flares in exam,the upper limits (90% C.L.) for the integral neutrino and antineutrino flux of different flavors are given.