CNGS Beam Monitor with the LVD Detector

Details CNGS Beam Monitor with the LVD Detector CNGS Beam Monitor with the LVD Detector

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....3.1279s&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The importance of an adequate CNGS beam monitor at the Gran Sasso Lab oratory has been stressed in many papers. Since the number of internal νµ CC and NC interactions in the various detectors will not allow to collect statistics rapidly, one should also be able to detect the νµ CC interactions in the upstream ro ck. In this study we have investigated the performances of the LVD detector as a monitor for the CNGS neutrino beam. Thanks to its wide area (13 × 11 m2 orthogonal to the beam direction) LVD can detect about 120 muons per day originated by νµ CC interactions in the ro ck. The LVD total mass is ˜ 2 k t. This allows to get 30 more CNGS events per day as internal (N C + C C ) νµ interactions, for a total of ˜ 150 events per day. A 3% statistical error can be reached in 7 days. Taking into account the time characteristics of the CNGS beam, the cosmic muon background can be reduced to a negligible level, of the order of 1.5 events per day.

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