LHCb detector performance

Abstract

The LHCb detector is a forward spectrometer at the Large Hadron Collider (LHC) at CERN. The experiment is designed for precision measurements of CP violation and rare decays of beauty and charm hadrons. In this paper the performance of the various LHCb sub-detectors and the trigger system are described, using data taken from 2010 to 2012. It is shown that the design criteria of the experiment have been met. The excellent performance of the detector has allowed the LHCb collaboration to publish a wide range of physics results, demonstrating LHCb's unique role, both as a heavy flavour experiment and as a general purpose detector in the forward region.

The hidden-charm pentaquark and tetraquark states

“…Its current performance can be found in Ref. [866]. LHCb has the world's largest sample of exclusively reconstructed charm and beauty decays, and is also an ideal platform to study the charmonium-like physics.…”

Measurement of the ratio of branching fractions $\mathscr{B} (B^0 \to D^{*-} \tau^+ \nu_\tau) / \mathscr{B} (B^0 \to D^{*-} \mu^+ \nu_\mu)$ with hadronic $\tau$ three-prong decays

“…The LHCb detector [9,10] is a single-arm forward spectrometer covering the pseudorapidity range 2 < η < 5, designed for the study of particles containing b or c quarks.…”

Machine Learning and Parallelism in the Reconstruction of LHCb and its Upgrade

“…Since the beauty production cross-section is dominated by gluon fusion, which occurs in the forward region, the LHCb detector is a single-arm forward spectrometer with a pseudorapidity η spanning the range 1.8 < η < 4.9 [2,3]. The detector includes a high-precision tracking system consisting of a silicon-strip vertex detector (VELO) surrounding the pp interaction region, a large-area silicon-strip detector (TT) located upstream of a dipole magnet with a bending power of about 4 Tm, and three stations of silicon-strip detectors (IT) and straw drift tubes (OT) placed downstream of the magnet.…”