Seminare de DPNC
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Mercredi, 28 avril 1999

17.00 - Auditoire Stuckelberg

Universite de Geneve
Departement de physique
nucleaire et corpusculaire
24, quai Ernest-Ansermet
1211 Geneva 4

Tel. 022 702 6273
Fax 022 781 2192

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Sujet:	Physics goals and technological challenges of the ATLAS pixel detector

Par: Leonardo Rossi, INFN and Physics Department - Genoa - Italy


Resume:	
Detection of secondary vertices emerging from high-energy particle
collisions gives access to a rich phenomenology crucial for the test
of the Standard Model and its most common extensions.
ATLAS, one of the two general-purpose experiments in construction for
LHC, will precisely measure vertices with a 150 million channels
silicon pixel detector.
The construction of this device will begin in 2000 after several
years of intense R&D devoted to the solution of many challenging
technological problems.
I will discuss the ATLAS pixel detector, both the motivations and
the status, and I will give a couple of examples of its foreseeable
use in physics measurements.