Commissioning and performance of the Belle II pixel detector

• DOI: 10.1016/j.nima.2020.164875
• Publication Date: 2020-11-18T23:28:46Z
• Authors: H. Ye; F. Abudinen; K. Ackermann; P. Ahlburg; M. Albalawi; O. Alonso; L. Andricek; R. Ayad; V. Babu; T. Bilka; M. Boronat; A. Bozek; C. Camien; A. Caldwell; V. Chekelian; B. Deschamps; A. Dieguez; J. Dingfelder; Z. Doležal; D. Esperante; M. Fras; A. Frey; J. Fuster; M. Gabriel; K. Gadow; U. Gebauer; T. Gessler; G. Giakoustidis; L. Gioi; P. Gomis; D. Greenwald; M. Heck; T. Hemperek; M. Hensel; M. Hoek; S. Huber; J. Kandra; P. Kapusta; C. Kiesling; B. Kisielewski; D. Kittlinger; D. Klose; P. Kodyš; C. Koffmane; I. Konorov; S. Krivokuca; H. Krüger; T. Kuhr; P. Kvasnička; C. Lacasta; J.S. Lange; K. Lautenbach; U. Leis; P. Leitl; D. Levit; G. Liemann; Q. Liu; Z. Liu; T. Lück; F. Lütticke; L. Macharski; C. Mariñas; S. Mccarney; H.G. Moser; D. Moya; F.J. Mueller; F. Müller; C. Niebuhr; J. Ninkovic; B. Paschen; S. Paul; I. Peric; F. Poblotzki; A. Rabusov; S.P. Reiter; R. Richter; M. Ritter; M. Ritzert; J.G. Sanchez; B. Scavino; G. Schaller; M. Schnecke; F. Schopper; H. Schreeck; B. Schwenker; R. Sedlmeyer; C. Sfienti; F. Simon; S. Skambraks; Y. Soloviev; B. Spruck; S. Stefkova; R. Stever; U. Stolzenberg; E. Tafelmayer; M. Takahashi; I. Vila; A.L. Virto; S. Vogt; M. Vos; C. Wang; N. Wermes; C. Wessel; P. Wieduwilt; H. Windel; J. Zhao
• Keywords: ddc:620; 03 medical and health sciences; 0302 clinical medicine; 7. Clean energy; Engineering & allied operations; info:eu-repo/classification/ddc/620; 620

Belle-II DEPFET and PXD Collaboration: et al.<br/>Peer reviewed<br/>The Belle II experiment at the SuperKEKB energy-asymmetric e+ e- collider has completed a series of substantial upgrades and started collecting data in 2019. The experiment is expected to accumulate a data set of 50 ab−1 to explore new physics beyond the Standard Model at the intensity frontier. The pixel detector (PXD) of Belle II plays a key role in vertex determination. It has been developed using the DEpleted P-channel Field Effect Transistor (DEPFET) technology, which combines low power consumption in the active pixel area and low intrinsic noise with a very small material budget. In this paper, commissioning and performance of the PXD measured with first collision data are presented.<br/>This work is supported by MEXT, Japan, WPI, Japan, and JSPS (Japan); MSMT, GAUK 404316, MSCA-RISE project JENNIFER-2 (EU grant n. 822070) (Czech Republic); Federal Ministry of Education and Research (BMBF, Germany) and MINECO, Spain grant FPA2015-71292-C2-1-P (Spain).<br/>