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Physics performance studies for the ALICE inner tracker upgrade

During the second long shutdown of the LHC in 2018, the ALICE Collaboration plans to install an upgrade of the ALICE Inner Tracking System (ITS) in the central barrel with seven layers of silicon detectors starting at 2.2 cm radial distance from the interaction region and a material budget as low as...

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Autor principal: Stiller, Johannes
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/446/1/012052
http://cds.cern.ch/record/1501396
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author Stiller, Johannes
author_facet Stiller, Johannes
author_sort Stiller, Johannes
collection CERN
description During the second long shutdown of the LHC in 2018, the ALICE Collaboration plans to install an upgrade of the ALICE Inner Tracking System (ITS) in the central barrel with seven layers of silicon detectors starting at 2.2 cm radial distance from the interaction region and a material budget as low as 0.3% radiation length per layer. A single-hit resolution of $\mathrm{4 \mu m}$ and a readout rate capability of up to 50 kHz in Pb--Pb collisions will allow new and unique measurements in the heavy-quark sector, i.e. charm and beauty. Using detailed Monte Carlo simulations of pp and Pb--Pb collisions we study the performance for heavy-flavor detection with an upgraded ITS in the following benchmark analyses: Charm meson and baryon production, i.e. $\mathrm{D^{0} \rightarrow K^{-}\pi^{+}}$ and $\mathrm{\Lambda_{c}^{+} \rightarrow pK^{-}\pi^{+}}$, and beauty meson and baryon production, i.e. displaced vertices of $\mathrm{B^{+} \rightarrow \bar{D}^{0}\pi^{+}}$ and $\mathrm{\Lambda_{b} \rightarrow \Lambda_{c}^{+}\pi^{-}}$.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-15013962022-08-17T13:27:38Zdoi:10.1088/1742-6596/446/1/012052http://cds.cern.ch/record/1501396engStiller, JohannesPhysics performance studies for the ALICE inner tracker upgradeNuclear Physics - ExperimentDuring the second long shutdown of the LHC in 2018, the ALICE Collaboration plans to install an upgrade of the ALICE Inner Tracking System (ITS) in the central barrel with seven layers of silicon detectors starting at 2.2 cm radial distance from the interaction region and a material budget as low as 0.3% radiation length per layer. A single-hit resolution of $\mathrm{4 \mu m}$ and a readout rate capability of up to 50 kHz in Pb--Pb collisions will allow new and unique measurements in the heavy-quark sector, i.e. charm and beauty. Using detailed Monte Carlo simulations of pp and Pb--Pb collisions we study the performance for heavy-flavor detection with an upgraded ITS in the following benchmark analyses: Charm meson and baryon production, i.e. $\mathrm{D^{0} \rightarrow K^{-}\pi^{+}}$ and $\mathrm{\Lambda_{c}^{+} \rightarrow pK^{-}\pi^{+}}$, and beauty meson and baryon production, i.e. displaced vertices of $\mathrm{B^{+} \rightarrow \bar{D}^{0}\pi^{+}}$ and $\mathrm{\Lambda_{b} \rightarrow \Lambda_{c}^{+}\pi^{-}}$.During the second long shutdown of the LHC in 2018, the ALICE Collaboration plans to install an upgrade of the ALICE Inner Tracking System (ITS) in the central barrel with seven layers of silicon detectors starting at 2.2 cm radial distance from the interaction region and a material budget as low as 0.3 % radiation length per layer. A single-hit resolution of 4 μm and a readout rate capability of up to 50 kHz in Pb–Pb collisions will allow new and unique measurements in the heavy-quark sector, i.e. charm and beauty. Using detailed Monte Carlo simulations of pp and Pb–Pb collisions we study the performance for heavy-flavor detection with an upgraded ITS in the following benchmark analyses: Charm meson and baryon production, i.e. D0 → K−π+ and Λ+c → pK−p+, and beauty meson and baryon production, i.e. displaced vertices of B+ → 0π+ and Λb → Λ+cπ−.During the second long shutdown of the LHC in 2018, the ALICE Collaboration plans to install an upgrade of the ALICE Inner Tracking System (ITS) in the central barrel with seven layers of silicon detectors starting at 2.2 cm radial distance from the interaction region and a material budget as low as 0.3% radiation length per layer. A single-hit resolution of $\mathrm{4 \mu m}$ and a readout rate capability of up to 50 kHz in Pb--Pb collisions will allow new and unique measurements in the heavy-quark sector, i.e. charm and beauty. Using detailed Monte Carlo simulations of pp and Pb--Pb collisions we study the performance for heavy-flavor detection with an upgraded ITS in the following benchmark analyses: Charm meson and baryon production, i.e. $\mathrm{D^{0} \rightarrow K^{-}\pi^{+}}$ and $\mathrm{\Lambda_{c}^{+} \rightarrow pK^{-}\pi^{+}}$, and beauty meson and baryon production, i.e. displaced vertices of $\mathrm{B^{+} \rightarrow \bar{D}^{0}\pi^{+}}$ and $\mathrm{\Lambda_{b} \rightarrow \Lambda_{c}^{+}\pi^{-}}$.arXiv:1212.4043oai:cds.cern.ch:15013962012-12-18
spellingShingle Nuclear Physics - Experiment
Stiller, Johannes
Physics performance studies for the ALICE inner tracker upgrade
title Physics performance studies for the ALICE inner tracker upgrade
title_full Physics performance studies for the ALICE inner tracker upgrade
title_fullStr Physics performance studies for the ALICE inner tracker upgrade
title_full_unstemmed Physics performance studies for the ALICE inner tracker upgrade
title_short Physics performance studies for the ALICE inner tracker upgrade
title_sort physics performance studies for the alice inner tracker upgrade
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1088/1742-6596/446/1/012052
http://cds.cern.ch/record/1501396
work_keys_str_mv AT stillerjohannes physicsperformancestudiesforthealiceinnertrackerupgrade