EPJ Web Conf.
Volume 245, 202024th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2019)
|Number of page(s)||8|
|Section||1 - Online and Real-time Computing|
|Published online||16 November 2020|
Data quality monitors of vertex detectors at the start of the Belle II experiment
Charles Univ. Prague, Czech Republic
2 INFN and Univ. Trieste, Italy
3 Max Planck Institut fur Physik Muenchen, Germany
4 Institute of Nuclear Physics PAN, Poland
5 Univ. of Bonn, Germany
6 U-Tokyo, Japan
7 University of Barcelona, Spain
8 Univ. of Tabuk, Saudi Arabia
9 Semiconductor Laboratory of the Max Planck Society, Germany
10 Tata Institute of Fundamental Research, India
11 Deutsches Elektronen-Synchrotron(DESY), Germany
12 Indian Institute of Technology Bhubaneswar, India
13 INFN and Univ. Pisa, Italy
14 Institut Pluridisciplinaire Hubert Curien (IPHC) Strasbourg, France
15 Indian Institute of Technology Madras, India
16 Instituto de Fisica Corpuscular(IFIC), Spain
17 Karlsruhe Institute of Technology(KIT), Germany
18 Institute of High Energy Physics, Austrian Academy of Sciences, Austria
19 Univ. of Science and Technology of China(USTC), China
20 Kavli IPMU (WPI), the University of Tokyo, Japan
21 Malaviya National Institute of Technology Jaipur, India
22 Univ. of Goettingen, Germany
23 Univ. of Giessen, Germany
24 Technical Univ. of Munich(Technische Universitaet Muenchen), Germany
25 University of Cincinnati, U.S.A.
26 High Energy Accelerator Research Organization (KEK), Japan
27 Univ. of Hawaii, U.S.A.
28 Johannes Gutenberg Univ. of Mainz, Germany
29 Kyungpook National Univ.(KNU), South Korea
30 Kitasato University, Japan
31 Ludwig Maximilians Univ. Muenchen(LMU), Germany
32 Panjab Univ., India
33 LiaoNing Normal University(LNNU), China
34 Peking Univ.(PKU), China
35 Fudan Univ., China
36 Institute of High Energy Physics(IHEP), China
37 Instituto de Fisica de Cantabria, Spain
38 Yonsei Univ., South Korea
39 Heidelberg University, Germany
40 Univ. of Ljubljana, Slovenia
41 Laboratoire de L’accelerateur Lineaire (LAL) Orsay, France
42 Univ. of Melbourne, Australia
* e-mail: firstname.lastname@example.org
Published online: 16 November 2020
The Belle II experiment features a substantial upgrade of the Belle detector and will operate at the SuperKEKB energy-asymmetric e+e− collider at KEK in Tsukuba, Japan. The accelerator completed its first phase of commissioning in 2016, and the Belle II detector saw its first electron-positron collisions in April 2018. Belle II features a newly designed silicon vertex detector based on double-sided strip layers and DEPFET pixel layers. A subset of the vertex detector was operated in 2018 to determine background conditions (Phase 2 operation). The collaboration completed full detector installation in January 2019, and the experiment started full data taking.
This paper will report on the final arrangement of the silicon vertex detector part of Belle II with a focus on online monitoring of detector conditions and data quality, on the design and use of diagnostic and reference plots, and on integration with the software framework of Belle II. Data quality monitoring plots will be discussed with a focus on simulation and acquired cosmic and collision data.
© The Authors, published by EDP Sciences, 2020
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