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Primary vertex in the ALICE experiment in absence of the event reconstruction |
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| Authors: | L. Vannucci N. Bustreo A. Badalà R. Barbera G. Lo Re A. Palmeri A. Pulvirenti G. S. Pappalardo F. Riggi B. S. Nilsen |
| Affiliation: | 1. Laboratori Nazionali di Legnaro, Istituto Nazionale di Fisica Nucleare, Via Romea 4, I-35020, Legnaro (Padova), Italy 2. Sezione di Catania Dipartimento di Fisica ed Astronomia dell’Università di Catania, Istituto Nazionale di Fisica Nucleare, Corso Italia 57, I-95129, Catania, Italy 3. Van de Graaff Laboratory, The Ohio State University, HO-43212, Columbus, Ohio, USA |
| Abstract: | ALICE is a general-purpose apparatus for the study of ultra-relativistic heavy-ion collisions at the Large Hadron Collider of the CERN. The study of such reactions demands the determination of the primary vertex in three dimensions with good resolution. We have developed an algorithm for finding the vertex position even in absence of the event reconstruction. The performances of such an algorithm have been studied as a function of the vertex position, particle multiplicity and magnetic field. |
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