The International School for Advanced Studies (SISSA) was founded in 1978 and was the first institution in Italy to promote post-graduate courses leading to a Doctor Philosophiae (or PhD) degree. A centre of excellence among Italian and international universities, the school has around 65 teachers, 100 post docs and 245 PhD students, and is located in Trieste, in a campus of more than 10 hectares with wonderful views over the Gulf of Trieste.
SISSA hosts a very high-ranking, large and multidisciplinary scientific research output. The scientific papers produced by its researchers are published in high impact factor, well-known international journals, and in many cases in the world's most prestigious scientific journals such as Nature and Science. Over 900 students have so far started their careers in the field of mathematics, physics and neuroscience research at SISSA.
Belle II Silicon Vertex Detector
D. Dutta7, K. Adamczyk18, H. Aihara15, C. Angelini8,9, T. Aziz7, V. Babu7, S. Bacher18, S. Bahinipati4, E. Barberio1, Ti. Baroncelli1, To. Baroncelli1, A.K. Basith5, G. Batignani8,9, A. Bauer2, P.K. Behera5, T. Bergauer2, S. Bettarini8,9, B. Bhuyan6, T. Bilka3, F. Bosi9, L. Bosisio10,11, A. Bozek18, F. Buchsteiner2, L. Bulla2, G. Caria1, G. Casarosa9, M. Ceccanti9, D. Červenkov3, S.R. Chendvankar7, N. Dash4, G. De Pietro8,9, S.T. Divekar7, Z. Doležal3, F. Forti8,9, M. Friedl2, K. Hara16, T. Higuchi12, T. Horiguchi14, C. Irmler2, A. Ishikawa14, H.B. Jeon17, C. Joo12, J. Kandra3, N. Kambara16, K.H. Kang17, T. Kawasaki13, P. Kodyš3, T. Kohriki16, S. Koike16, M.M. Kolwalkar7, R. Kumar19, W. Kun15, P. Kvasnička3, C. La Licata10,11, L. Lanceri10,11, J. Lettenbicher2, J. Libby5, T. Lueck8,9, M. Maki16, P. Mammini9, S.N. Mayekar7, G.B. Mohanty7, S. Mohanty7, T. Morii12, K.R. Nakamura16, Z. Natkaniec18, Y. Onuki15, W. Ostrowicz18, A. Paladino8,9, E. Paoloni8,9, H. Park17, F. Pilo9, A. Profeti9, I. Rashevskaya11, K.K. Rao7, G. Rizzo8,9, P.K. Resmi5, M. Rozanska18, J. Sasaki15, N. Sato16, S. Schultschik2, C. Schwanda2, Y. Seino13, N. Shimizu15, J. Stypula18, J. Suzuki16, S. Tanaka16, G.N. Taylor1, R. Thalmeier2, R. Thomas7, T. Tsuboyama16, S. Uozumi17, P. Urquijo1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19, L. Vitale10,11, S. Watanuki14, M. Watanabe12, I.J. Watson15, J. Webb1, J. Wiechczynski18, S. Williams1, B. Würkner2, H. Yamamoto14, H. Yin2, T. Yoshinobu16 and L. Zani8,9
The Belle II experiment at the SuperKEKB asymmetric energy e+e− collider in KEK, Japan will operate at an instantaneous luminosity 40 times larger than that of its predecessor, Belle. It is built with an aim of collecting a huge amount of data (50 ab−1 by 2025) for precise CP violation measurements and new physics search. Thus, we need an accurate vertex determination and reconstruction of low momentum tracks which will be achieved with the help of vertex detector (VXD). The Belle II VXD consists of two layers of DEPFET pixels (`Pixel Detector') and four layers of double-sided silicon microstrip sensors (`Silicon Vertex Detector'), assembled over carbon fibre ribs. In this paper, we discuss about the Belle II Silicon Vertex Detector, especially its design and key features; we also present its module (`ladder') assembly and testing procedures.
