Performance of the Belle II Silicon Vertex Detector

H. Tanigawa , K. Adamczyk , H. Aihara , T. Aziz , S. Bacher , S. Bahinipati , G. Batignani , J. Baudot (1) , P.K. Behera , S. Bettarini , T. Bilka , A. Bozek , F. Buchsteiner , G. Casarosa , D. Červenkov , Y.Q. Chen , L. Corona , T. Czank , S.B. Das , N. Dash , G. de Marino , Z. Doležal , G. Dujany (1) , F. Forti , M. Friedl , E. Ganiev , B. Gobbo , S. Halder , K. Hara , S. Hazra , T. Higuchi , C. Irmler , A. Ishikawa , H.B. Jeon , C. Joo , M. Kaleta , A.B. Kaliyar , J. Kandra , K.H. Kang , P. Kapusta , P. Kodyš , T. Kohriki , M. Kumar , R. Kumar , P. Kvasnička , C. La Licata , K. Lalwani , L. Lanceri , S.C. Lee , Y.B. Li , J. Libby , T. Lueck , S. Maity , S.N. Mayekar , G.B. Mohanty , J.A. Mora Grimaldo , T. Morii , K.R. Nakamura , Z. Natkaniec , Y. Onuki , W. Ostrowicz , A. Paladino , E. Paoloni , H. Park , K.K. Rao , I. Ripp-Baudot (1) , G. Rizzo , N. Rout , D. Sahoo , N. Sato , C. Schwanda , J. Suzuki , S. Tanaka , R. Thalmeier , T. Tsuboyama , Y. Uematsu , O. Verbycka , L. Vitale , K. Wan , S. Watanuki , J. Webb , J. Wiechczynski , H. Yin , L. Zani , T. Zhang

1 IPHC - Institut Pluridisciplinaire Hubert Curien

The Belle II experiment at the SuperKEKB collider of KEK (Japan) started recording physics data in spring 2019 with all its subdetectors installed and with the goal of accumulating 50 ab −1 of e+e− collision events at the unprecedented instantaneous luminosity of 8×1035cm−2s−1 , about 40 times larger than its predecessor. The Belle II vertex detector plays a crucial role in the broad Belle II physics program, especially for time-dependent CP measurements. It consists of two layers of DEPFET-based pixels and four layers of double-sided silicon strip detectors (SVD).

Mots clés: Belle II; Silicon Vertex Detector; Performance; activity report; BELLE; vertex detector; SVD; semiconductor detector: pixel; semiconductor detector: microstrip; semiconductor detector: design

Domaines: Instrumentations et Détecteurs [physics.ins-det]

H. Tanigawa, K. Adamczyk, H. Aihara, T. Aziz, S. Bacher, et al.. Performance of the Belle II Silicon Vertex Detector. Nucl.Instrum.Meth.A, 2020, 972, pp.164129. ⟨10.1016/j.nima.2020.164129⟩. ⟨hal-02863140⟩