The silicon vertex detector of the Belle II experiment

被引：1

作者：

Irmler, C. ^{[2
,13
]}

Adamczyk, K. ^{[21
]}

Aggarwalj, L. ^{[10
]}

Aiharar, H. ^{[18
]}

Aziz, T. ^{[11
]}

Bacher, S. ^{[21
]}

Bahinipati, S. ^{[6
]}

Batignani, G. ^{[12
,13
]}

Baudot, J. ^{[5
]}

Behera, P. K. ^{[7
]}

Bettarini, S. ^{[12
,13
]}

Bilka, T. ^{[3
]}

Bozek, A. ^{[21
]}

Buchsteiner, F. ^{[2
]}

Casarosa, G. ^{[12
,13
]}

Corona, L. ^{[12
,13
]}

Czank, T. ^{[17
,22
]}

Das, S. B. ^{[8
]}

Dujany, G. ^{[5
]}

Finck, C. ^{[5
]}

Forti, F. ^{[12
,13
]}

Friedl, M. ^{[2
]}

Gabrielli, A. ^{[14
,15
]}

Ganiev, E. ^{[14
,15
,23
]}

Gobbo, B. ^{[15
]}

Halder, S. ^{[11
]}

Hara, K. ^{[16
,19
]}

Hazra, S. ^{[11
]}

Higuchi, T. ^{[17
]}

Ishikawa, A. ^{[16
,19
]}

Jeon, H. B. ^{[20
]}

Jin, Y. ^{[15
]}

Kaleta, M. ^{[21
]}

Kaliyar, A. B. ^{[11
]}

Kandra, J. ^{[3
]}

Kang, K. H. ^{[17
]}

Kapusta, P. ^{[21
]}

Kodys, P. ^{[3
]}

Kohriki, T. ^{[19
]}

Kumar, M. ^{[8
]}

Kumar, R. ^{[9
]}

La Licata, C. ^{[17
]}

Lalwani, K. ^{[8
]}

Lautenbach, K. ^{[4
]}

Leboucher, R. ^{[4
]}

Lee, S. C. ^{[20
]}

Libby, J. ^{[7
]}

Martel, L. ^{[5
]}

Massaccesi, L. ^{[12
,13
]}

Mohanty, G. B. ^{[11
]}

机构：

[1] Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia

[2] Austrian Acad Sci, Inst High Energy Phys, A-1050 Vienna, Austria

[3] Charles Univ Prague, Fac Math & Phys, Prague 12116, Czech Republic

[4] Aix Marseille Univ, CNRS, CPPM, IN2P3, F-13288 Marseille, France

[5] Univ Strasbourg, IPHC, UMR 7178, CNRS, F-67037 Strasbourg, France

[6] Indian Inst Technol Bhubaneswar, Satya Nagar, India

[7] Indian Inst Technol Madras, Chennai 600036, India

[8] Malaviya Natl Inst Technol Jaipur, Jaipur 302017, India

[9] Punjab Agr Univ, Ludhiana 141004, India

[10] Panjab Univ, Chandigarh 160014, India

[11] Tata Inst Fundamental Res, Mumbai 400005, India

[12] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy

[13] INFN Sez Pisa, I-56127 Pisa, Italy

[14] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy

[15] INFN Sez Trieste, I-34127 Trieste, Italy

[16] Grad Univ Adv Studies SOKENDAI, Hayama 2400193, Japan

[17] Univ Tokyo, Kavli Inst Phys & Math Universe, Kashiwa 2778583, Japan

[18] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[19] High Energy Accelerator Res Org KEK, Tsukuba 3050801, Japan

[20] Kyungpook Natl Univ, Dept Phys, Daegu 41566, South Korea

[21] H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland

[22] Tokyo Metropolitan Univ, Tokyo 1920397, Japan

[23] DESY, D-22761 Hamburg, Germany

[24] INFN Sez Bologna, I-40127 Bologna, Italy

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1045卷

基金：

欧洲研究理事会;

关键词：

Event T0 estimation; Belle II; Vertex detector; Silicon strip detector; Radiation damage; DESIGN;

D O I：

10.1016/j.nima.2022.167578

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The Belle II experiment is taking data at the asymmetric SuperKEKB collider (KEK, Japan), which operates at the gamma(4S) resonance. The vertex detector is composed of an inner two-layer pixel detector (PXD) and the silicon vertex detector (SVD), made of four layers of double-sided silicon strip detectors. A deep knowledge of the system has been gained since the start of operations in 2019 by assessing the high-quality and stable reconstruction performance of the detector. The very high hit efficiency and large signal-to-noise ratio are monitored via online data-quality plots. The good cluster-position resolution is estimated using the unbiased residual with respect to the track, and it is in reasonable agreement with the expectations. The SVD dose is estimated by the correlation of the SVD occupancy with the dose measured by the diamond sensors of the radiation-monitoring and beam-abort system. First radiation damage effects are measured on the sensor current and strip noise are shown not to affect the performance. Six samples of the shaped particle signal are recorded utilizing the multi-peak mode of the APV25 front-end chip and used to determine the hit timing with a precision of 2 to 3 ns. Recently a method to compute the time of collision from SVD hit time information has been implemented and verified with simulations and on data.

引用

页数：3

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