Performance of the NOMAD-STAR detector

被引:5
作者
Barichello, G
Cervera-Villanueva, A
Daniels, DC
Silva, ED
Ellis, M
Ferrère, D
Gómez-Cadenas, JJ
Gössling, C
Gouanrère, M
Hernando, JA
Huta, W
Kokkonen, J
Kuznetsov, VE
Linssen, L
Lisowski, B
Long, J
Lupi, A
Runolfsson, Ö
Schmidt, B
Soler, FJP
Steele, D
Stipcevic, M
Vidal-Sitjes, G
Veltri, M
机构
[1] Univ Padua, Padua, Italy
[2] CERN, Geneva, Switzerland
[3] Univ Valencia, IFIC, Valencia, Spain
[4] Harvard Univ, Cambridge, MA 02138 USA
[5] Univ Sydney, Sydney, NSW 2006, Australia
[6] Univ Dortmund, Dortmund, Germany
[7] LAPP, Annecy, France
[8] Joint Inst Nucl Res, Dubna, Russia
[9] Ist Nazl Fis Nucl, I-50125 Florence, Italy
[10] Univ Urbino, I-61029 Urbino, Italy
[11] Univ Lausanne, Lausanne, Switzerland
[12] Rudjer Boskovic Inst, Zagreb, Croatia
基金
芬兰科学院;
关键词
neutrino physics; silicon microstrip detectors;
D O I
10.1016/S0168-9002(03)01379-2
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
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 m(2). About 11,500 v(mu) 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 v(mu)(v(c)) <----> v(tau) oscillations depends on the observation of the tau candidates by the experimental signature of a large impact parameter, in the case of the one prong decay of the tau, 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. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:217 / 237
页数:21
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