Abstract
The LHCb detector is a single-arm forward spectrometer designed for the efficient reconstruction decays of c- and b-hadrons. LHCb has introduced a novel real-time detector alignment and calibration strategy for LHC Run II. Data collected at the start of the fill are processed in a few minutes and used to update the alignment, while the calibration constants are evaluated for each run. This is one of the key elements which allow the reconstruction quality of the software trigger in Run-II, which fully includes the particle identification selection criteria, to be as good as the offline quality of Run-I. This approach greatly increases the efficiency, in particular for the selection of charm and strange hadron decays. We discuss strategy and performance of this novel approach, followed by a presentation of the recent developments implemented for the 2017 run of data taking, and with the performance and reconstruction quality achieved by the LHCb experiment in LHC Run-II.
Highlights
The LHCb detector [1][2] is a single-arm forward spectrometer covering the pseudorapidity range 2 < η < 5, designed for the study of beauty and charm hadron decays with special attention to CP violating phenomena as well as searches for physics beyond the Standard Model through rare decays
The LHCb detector is a single-arm forward spectrometer designed for the efficient reconstruction decays of c- and b-hadrons
We discuss strategy and performance of this novel approach, followed by a presentation of the recent developments implemented for the 2017 run of data taking, and with the performance and reconstruction quality achieved by the LHCb experiment in LHC Run-II
Summary
European Organization for Nuclear Research (CERN), Geneva, Switzerland 2 University of Manchester, Manchester, United Kingdom 3 LPNHE, Paris, France 4 University of Cincinnati, Cincinnati, OH, United States
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