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Study of Double Charm B Decays with the LHCb Experiment at CERN and Track Reconstruction for the LHCb Upgrade pp 29–65Cite as

The LHCb Detector at the LHC

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Abstract

The Large Hadron Collider (LHC) [1] at CERN is the most powerful particle collider ever built. The accelerator has a circumference of 27\(\mathrm {\,km}\) and it is installed in a dedicated tunnel placed 100\(\mathrm {\,m}\) underground in the Swiss-France area near Geneva (Switzerland). LHC is designed to accelerate counter-propagating proton beams up to an energy of 7\(\mathrm {\,TeV}\) and collide them at the nominal centre-of-mass energy of 14\(\mathrm {\,TeV}\). Before injection in the LHC ring, the beams are pre-accelerated by several steps as shown in Fig. 2.1.

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Notes

  1. 1.

    A quench in a superconducting magnet induced a leak of liquid helium in the tunnel damaging the corresponding section of the LHC accelerator.

  2. 2.

    A further advantage of keeping the luminosity constant is that the same trigger configuration can be kept and that the detector occupancy is not changing. This simplifies the analysis of the data and reduces systematic uncertainties.

  3. 3.

    Inner (Outer) region corresponds to regions close (far) to the beam-pipe.

  4. 4.

    Five of them are located upstream the interaction point.

  5. 5.

    Thicker sensors are used in left and right boxes where two rows of sensors connected in series are present.

  6. 6.

    The 4\(\,\upmu {\mathrm s}\) latency also includes the cable and electronic delays and the time the particle spent to travel through the full detector.

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Authors and Affiliations

  1. LHCb group, LPNHE, CNRS, Université Paris-Saclay, Paris, France

    Renato Quagliani

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  1. Renato Quagliani
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Quagliani, R. (2018). The LHCb Detector at the LHC . In: Study of Double Charm B Decays with the LHCb Experiment at CERN and Track Reconstruction for the LHCb Upgrade. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-01839-9_2

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