TY - JOUR
T1 - CMS Tracking Performance Results from Early LHC Operation
AU - Tuominen, Eija Maarit
AU - Tuovinen, Esa Veikko
AU - CMS Collaboration
PY - 2010/11/24
Y1 - 2010/11/24
N2 - 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.
AB - 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.
UR - https://researchportal.helsinki.fi/en/publications/f3237b7f-d8ae-4def-9ae4-959bf7a67c2d
U2 - 10.1140/epjc/s10052-010-1491-3
DO - 10.1140/epjc/s10052-010-1491-3
M3 - Article
SN - 1434-6044
VL - 70
SP - 1165
EP - 1192
JO - The European Physical Journal C: Particles and Fields
JF - The European Physical Journal C: Particles and Fields
ER -