Author/Authors :
Bertolucci، نويسنده , , S and Coccia، نويسنده , , E and D’Antonio، نويسنده , , S and Waard، نويسنده , , A.de and Monache، نويسنده , , G. Delle and Gioacchino، نويسنده , , D. Di and Fafone، نويسنده , , V and Fauth، نويسنده , , A and Frossati، نويسنده , , G and Ligi، نويسنده , , C and Marini، نويسنده , , A and Mazzitelli، نويسنده , , G and Modestino، نويسنده , , G and Pizzella، نويسنده , , G and Quintieri، نويسنده , , L and Raffone، نويسنده , , G and Ronga، نويسنده , , F and Tripodi، نويسنده , , P and Valente، نويسنده , , P، نويسنده ,
Abstract :
The resonant-mass gravitational wave detector NAUTILUS has recently recorded signals due to cosmic rays crossing. Very large signals have been observed in the superconductive state of the antenna. In order to investigate this anomalous response at low temperatures, the Rivelazione Acustica di Particelle experiment has been approved. Its purpose is the measurement of the mechanical vibrations in a superconducting (T∼100 mK) cylindrical aluminium bar when hit by 105 electrons at 510 MeV from the DAΦNE Beam Test Facility, corresponding to the energies released by extensive air showers in the NAUTILUS antenna. The results of this measurement are crucial to understand the interaction of ionizing particles with bulk superconductors and to confirm the results on the thermo-acoustic model of the past experiments.
