Author/Authors :
Aglietta، نويسنده , , M and Antonioli، نويسنده , , P and Bari، نويسنده , , G and Castagnoli، نويسنده , , C and Fulgione، نويسنده , , W and Galeotti، نويسنده , , P and Garbini، نويسنده , , M and Ghia، نويسنده , , P.L. and Giusti، نويسنده , , P and Kemp، نويسنده , , V.A. and Malguin، نويسنده , , A.S and Menghetti، نويسنده , , H and Pesci، نويسنده , , A and Pless، نويسنده , , I.A. and Porta، نويسنده , , A and Ryasny، نويسنده , , V.G. and Ryazhskaya، نويسنده , , O.G. Morales-Saavedra، نويسنده , , O and Sartorelli، نويسنده , , G and Selvi، نويسنده , , M and Vigorito، نويسنده , , C and Votano، نويسنده , , L and Yakushev، نويسنده , , V.F. and Zatsepin، نويسنده , , G.T. and Zichichi، نويسنده , , A، نويسنده ,
Abstract :
The importance of an adequate CNGS beam monitor at the Gran Sasso Laboratory 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 rock.
s study, we have investigated the performances of the LVD detector as a monitor for the CNGS neutrino beam.
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 rock.
D total mass is ∼2 kt. This allows to get 30 more CNGS events per day as internal (NC+CC) νμ interactions, for a total of ∼150 events/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/day.
Keywords :
CNGS beam , Liquid scintillator , Neutrino oscillations , LVD , Muon transport in rock , LNGS
