Analysis of the data recorded by the Mont Blanc neutrino detector and by the Maryland and Rome gravitational-wave detectors during SN1987A

The data recorded by the gravitational wave and the neutrino detectors mentioned in the title have been analysed over a period of several days that includes the Mont Blanc 5? burst occurrence time. A correlation is found during a period of about two hours roughly centred on the 5? burst, independently between Maryland and Mont Blanc and Rome and Mont Blanc. The probability that these two correlations be due to chance is of the order of between 10-6 and 10-5. It is found that this effect is mainly due to a dozen of large Maryland and Rome events distributed during the above two-hour period.