The new ALEPH Silicon Vertex Detector

D. Creanza, M. De Palma, G. Maggi, G. Selvaggi, L. Silvestris, G. Raso, P. Tempesta, M. Burns, P. Coyle, M. Frank, L. Moneta, G. Rizzo, M. Wachnik, A. Wagner, E. Focardi, G. Parrini, E. Scarlini, A. Halley, V. O'Shea, C. RaineG. Barber, W. Cameron, P. Dornan, D. Gentry, N. Konstantinidis, A. Moutoussi, J. Nash, D. Price, A. Stacey, L. W. Toudup, M. I. Williams, M. Billault, A. Bonissent, G. Bujosa, D. Calvet, J. Carr, C. Diaconu, P. E. Blanc, J. J. Destelle, P. Karst, P. Payre, D. Rousseau, M. Thulasidas, H. Dietl, H. G. Moser, R. Settles, H. Seywerd, G. Waltermann, F. Bosi, C. Bozzi, R. Dell'Orso, A. Profeti, G. Sguazzoni, P. G. Verdini, J. P. Bizzell, P. D. Maley, J. C. Thompson, A. E. Wright, S. Black, J. Dann, H. Y. Kim, L. Bosisio, J. Putz, J. Rothberg, S. Wasserbaech, P. Elmer, J. Walsh

Research output: Contribution to journalArticleResearchpeer-review

18 Citations (Scopus)


The ALEPH collaboration, in view of the importance of effective vertex detection for the Higgs boson search at LEP 2, decided to upgrade the previous vertex detector. Main changes were an increased length (± 20cm), a higher granularity for rφ view (50 μm), a new preamplifier (MX7 rad hard chip), a polymide (upilex) fan-out on z side to carry the signals from the strips to the front-end electronics outside the fiducial region reducing consequently the passive material in the central region by a factor of two. The detector, the running experience and its performance will be described.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Issue number1-3
Publication statusPublished - 21 May 1998
Externally publishedYes

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