CMS Tracking Performance Results from early LHC Operation.

Collaboration CMS;Khachatryan, Vadran;Basegmez, Suzan;Bruno, Giacomo;Schul, Nicolas;et.al.
(2010) European Physical Journal C. Particles and Fields — Vol. 70, n° 4, p. 1165-1192 (2010)

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Authors
  • Collaboration CMS
    Author
  • Khachatryan, VadranYerevan Phys. Inst.
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Author
  • Caudron, JulienUCLouvain
    Author
  • Author
  • Demin, PavelUCLouvain
    Author
  • Favart, DenisUCLouvain
    Author
  • Author
  • Grégoire, GhislainUCLouvain
    Author
  • Hollar, JonathanUCLouvain
    Author
  • Author
  • Militaru, OtiliaUCLouvain
    Author
  • Ovyn, SéverineUCLouvain
    Author
  • Pagano, DavideUCLouvain
    Author
  • Pin, ArnaudUCLouvain
    Author
  • Piotrzkowski, KrzysztofUCLouvain
    Author
  • Author
  • Schul, NicolasUCLouvain
    Author
  • et. al.
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Abstract
The 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.
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Citations

Collaboration CMS, Khachatryan, V., Basegmez, S., Bruno, G., Caudron, J., de Favereau de Jeneret, J., Delaere, C., Demin, P., Favart, D., Giammanco, A., Grégoire, G., Hollar, J., Lemaitre, V., Militaru, O., Ovyn, S., Pagano, D., Pin, A., Piotrzkowski, K., Quertenmont, L., et al. (2010). CMS Tracking Performance Results from early LHC Operation. European Physical Journal C. Particles and Fields, 70(4), 1165-1192. https://doi.org/10.1140/epjc/s10052-010-1491-3 (Original work published 2010)