Study of neutrino interactions with the electronic detectors of the OPERA experiment
Study of neutrino interactions with the electronic detectors of the OPERA experiment
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DOI：
10.1088/1367-2630/13/5/053051
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发表时间：
2011-05-26
影响因子：
3.3
通讯作者：
Zimmermann, R.
中科院分区：
文献类型：
--
作者：
Agafonova, N.;Aleksandrov, A.;Zimmermann, R.
OPERA实验是基于一种结合了电子探测器（ED）和核乳胶的混合技术。OPERA在2008年和2009年CNGS中微子束的物理运行期间收集了μ子-中微子相互作用，该中微子束在CERN产生，能量范围约为5-35 GeV。用OPERA ED分析了靶当量亮度上的总共5.3x10（19）个质子：闪烁体条带靶跟踪器和配备有电阻板气室和漂移管的磁μ子谱仪，允许详细重建μ子-中微子相互作用。使用ED中的测量值识别充电电流（CC）和中性电流（NC）相互作用，并计算NC/CC比。分析了CC相互作用中产生的μ子径迹的动量分布和电荷。对CC和NC样品进行可见光能量的量热测量。对于CC事件，计算了Bjorken-y分布和强子簇射剖面。将结果与ED响应的详细蒙特卡罗模拟进行比较。
The OPERA experiment is based on a hybrid technology combining electronic detectors (EDs) and nuclear emulsions. OPERA collected muon-neutrino interactions during the 2008 and 2009 physics runs of the CNGS neutrino beam, produced at CERN with an energy range of about 5-35 GeV. A total of 5.3x10(19) protons on target equivalent luminosity have been analysed with the OPERA EDs: scintillator strips target trackers and magnetic muon spectrometers equipped with resistive plate gas chambers and drift tubes, allowing a detailed reconstruction of muon-neutrino interactions. Charged current (CC) and neutral current (NC) interactions are identified, using the measurements in the EDs, and the NC/CC ratio is computed. The momentum distribution and the charge of the muon tracks produced in CC interactions are analysed. Calorimetric measurements of the visible energy are performed for both the CC and NC samples. For CC events, the Bjorken-y distribution and the hadronic shower profile are computed. The results are compared with a detailed Monte Carlo simulation of the response of EDs.