TY - JOUR
T1 - Performance of the NOMAD-STAR detector
AU - Barichello, G.
AU - Cervera-Villanueva, A.
AU - Daniels, D. C.
AU - Do Couto e Silva, E.
AU - Ellis, M.
AU - Ferrère, D.
AU - Gómez-Cadenas, J. J.
AU - Gössling, C.
AU - Gouanère, M.
AU - Hernando, J. A.
AU - Huta, W.
AU - Kokkonen, J.
AU - Kuznetsov, V. E.
AU - Linssen, L.
AU - Lisowski, B.
AU - Long, J.
AU - Lupi, A.
AU - Runolfsson, Ö
AU - Schmidt, B.
AU - Soler, F. J.P.
AU - Steele, D.
AU - Stipčević, M.
AU - Vidal-Sitjes, G.
AU - Veltri, M.
PY - 2003/7/1
Y1 - 2003/7/1
N2 - The NOMAD-STAR detector is a silicon vertex detector installed in the NOMAD spectrometer at the CERN SPS neutrino beam. It consists of four layers of a passive boron carbide target with a total mass of 45 kg and five layers of 600 single-sided silicon microstrip detectors covering a total area of 1.14 m2. About 11,500 νμ charged current interactions were reconstructed in the fiducial volume of NOMAD-STAR from the neutrino run in 1998. The potential use of silicon detectors for νμ(νe) ↔ ντ oscillations depends on the observation of the τ candidates by the experimental signature of a large impact parameter, in the case of the one prong decay of the τ, or a double vertex, in the case of the three prong decay. The main aim of NOMAD-STAR is to measure the impact parameter and vertex distributions of charged current interactions, which constitute the main backgrounds for the oscillation signals, to understand the significance of a potential signal in a future experiment. The present paper describes the experience gained in the operation of this silicon vertex detector, and the performance achieved with it.
AB - The NOMAD-STAR detector is a silicon vertex detector installed in the NOMAD spectrometer at the CERN SPS neutrino beam. It consists of four layers of a passive boron carbide target with a total mass of 45 kg and five layers of 600 single-sided silicon microstrip detectors covering a total area of 1.14 m2. About 11,500 νμ charged current interactions were reconstructed in the fiducial volume of NOMAD-STAR from the neutrino run in 1998. The potential use of silicon detectors for νμ(νe) ↔ ντ oscillations depends on the observation of the τ candidates by the experimental signature of a large impact parameter, in the case of the one prong decay of the τ, or a double vertex, in the case of the three prong decay. The main aim of NOMAD-STAR is to measure the impact parameter and vertex distributions of charged current interactions, which constitute the main backgrounds for the oscillation signals, to understand the significance of a potential signal in a future experiment. The present paper describes the experience gained in the operation of this silicon vertex detector, and the performance achieved with it.
KW - Neutrino physics
KW - Silicon microstrip detectors
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U2 - 10.1016/S0168-9002(03)01379-2
DO - 10.1016/S0168-9002(03)01379-2
M3 - Article
AN - SCOPUS:0038377457
SN - 0168-9002
VL - 506
SP - 217
EP - 237
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 3
ER -