The Silicon Vertex Detector of the Belle II Experiment

Higuchi, Takeo; Aihara, H.; Aziz, T.; Bacher, S.; Bahinipati, S.; Barberio, E.; Baroncelli, Ti.; Baroncelli, To.; Batignani, Giovanni; Bauer, A.; Bertacchi, V.; Bettarini, S.; Bhuyan, B.; Bilka, T.; Bosi, F.; Bosisio, L.; Bozek, A.; Buchsteiner, F.; Caria, G.; Casarosa, Giulia; Ceccanti, M.; Cervenkov, D.; Czank, T.; Dash, N.; Doleal, Z.; Forti, F.; Friedl, M.; Gobbo, B.; Hara, K.; Irmler, C.; Ishikawa, Akimasa; Joo, C.; Kaleta, M.; Kandra, Jakub; Kodyš, P.; Kohriki, T.; Komarov, I.; Kumar, M.; Kumar, R.; Kun, W.; Kvasnicka, P.; Lalwani, K.; Lanceri, L.; Li, Y.; Libby, J.; Lueck, T.; Mammini, P.; Martini, A.; Morii, T.; Natkaniec, Z.; Onuki, Y.; Ostrowicz, W.; Paladino, A.; Paoloni, E.; Park, H.; Prasanth, K.; Profeti, A.; Rashevskaya, I.; Rizzo, G.; Rozanska, M.; Sahoo, D.; Sasaki, J.; Sato, N.; Schultschik, S.; Schwanda, C.; Stypula, J.; Suzuki, J.; Tanaka, S.; Tanigawa, H.; Thalmeier, R.; Tsuboyama, T.; Urquijo, P.; Vitale, L.; Watanabe, M.; Watanuki, S.; Webb, J.; Wiechczynski, J.; Williams, S.; Yin, H.; Zani, Laura; Basith, A. K.; Grimaldo, J. A. M.; Kang, K. H.; La Licata, C.; Lee, J. Y.; Lee, S. C.; Mayekar, S. N.; Mohanty, G. B.; Nakamura, K. R.; Rao, K. K.; Resmi, P. K.; Taylor, G. N.; Watson, I. J.; On behalf of the BELLE II SVD collaboration,

doi:10.22323/1.348.0024

Volume 348 - The 27th International Workshop on Vertex Detectors (VERTEX2018) - Main session

The Silicon Vertex Detector of the Belle II Experiment

T. Higuchi*, H. Aihara, T. Aziz, S. Bacher, S. Bahinipati, E. Barberio, T. Baroncelli, T. Baroncelli, G. Batignani, A. Bauer, V. Bertacchi, S. Bettarini, B. Bhuyan, T. Bilka, F. Bosi, L. Bosisio, A. Bozek, F. Buchsteiner, G. Caria, G. Casarosa, M. Ceccanti, D. Cervenkov, T. Czank, N. Dash, Z. Doleal, F. Forti, M. Friedl, B. Gobbo, K. Hara, C. Irmler, A. Ishikawa, C. Joo, M. Kaleta, J. Kandra, P. Kodyš, T. Kohriki, I. Komarov, M. Kumar, R. Kumar, W. Kun, P. Kvasnicka, K. Lalwani, L. Lanceri, Y. Li, J. Libby, T. Lueck, P. Mammini, A. Martini, T. Morii, Z. Natkaniec, Y. Onuki, W. Ostrowicz, A. Paladino, E. Paoloni, H. Park, K. Prasanth, A. Profeti, I. Rashevskaya, G. Rizzo, M. Rozanska, D. Sahoo, J. Sasaki, N. Sato, S. Schultschik, C. Schwanda, J. Stypula, J. Suzuki, S. Tanaka, H. Tanigawa, R. Thalmeier, T. Tsuboyama, P. Urquijo, L. Vitale, M. Watanabe, S. Watanuki, J. Webb, J. Wiechczynski, S. Williams, H. Yin, L. Zani, A.K. Basith, J.A.M. Grimaldo, K.H. Kang, C. La Licata, J.Y. Lee, S.C. Lee, S.N. Mayekar, G.B. Mohanty, K.R. Nakamura, K.K. Rao, P.K. Resmi, G.N. Taylor, I.J. Watson and On behalf of the BELLE II SVD collaborationet al. (click to show)

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Pre-published on: September 03, 2019

Published on: September 06, 2019

Abstract

The silicon vertex detector (SVD) for the Belle II experiment at the SuperKEKB accelerator in Japan is responsible for detecting particle's origins. It comprises four cylindrical layers with ladder-like double-sided silicon detector (DSSD) arrays on each layer. The ladders produced under a stringent quality control showed good mechanical tolerance with a DSSD distortion <~300um and with an electrical efficiency >99%. The SVD was commissioned with cosmic-ray events for two months. Cluster-finding efficiency was estimated in the commissioning to be >98.5%. The commissioned SVD had been installed on the Belle~II detector. The so-called "phase 3" of the experiment with the SVD will start in March 2019.

DOI: https://doi.org/10.22323/1.348.0024

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