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CMS tracking performance results from early LHC operation

AutorCabrillo, I. J. ; Calderon, Alicia ; Chuang, S. H. ; Diaz Merino, I.; Díez González, C.; Duarte Campderros, J. ; Fernández, M. ; Gómez, G. ; González Sánchez, J. ; González Suárez, R. ; Jorda, C. ; Lobelle Pardo, P. ; López Virto, A. ; Marco, Jesús ; Marco, Rafael ; Martínez-Rivero, Celso ; Martínez Ruiz del Arbol, P. ; Matorras, Francisco ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Sobron Sañudo, M. ; Vila, Iván ; Vilar, Rocío
Fecha de publicación2010
EditorSpringer
CitaciónEuropean Physical Journal C: Particles and Fields 70(4): 1165-1192 (2010)
ResumenThe first LHC pp collisions at centre-of-mass energies of 0.9 and 2.36 TeV were recorded by the CMS detector in December 2009. The trajectories of charged particles produced in the collisions were reconstructed using the all-silicon Tracker and their momenta were measured in the 3.8 T axial magnetic field. Results from the Tracker commissioning are presented including studies of timing, efficiency, signal-to-noise, resolution, and ionization energy. Reconstructed tracks are used to benchmark the performance in terms of track and vertex resolutions, reconstruction of decays, estimation of ionization energy loss, as well as identification of photon conversions, nuclear interactions, and heavy-flavour decays.
Descripción28 páginas, 19 figuras, 5 tablas.-- Open Access: This article is distributed under the terms of the Creative Commons Attribution Noncommercial License.-- CMS Collaboration: et al.
Versión del editorhttp://dx.doi.org/10.1140/epjc/s10052-010-1491-3
URIhttp://hdl.handle.net/10261/45867
DOI10.1140/epjc/s10052-010-1491-3
ISSN1434-6044
E-ISSN1434-6052
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