Centrality determination in heavy-ion collisions with the LHCb detector

LHCb collaboration

doi:10.1088/1748-0221/17/05/P05009

Centrality determination in heavy-ion collisions with the LHCb detector

LHCb collaboration

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √sNN = 5 TeV and lead-neon fixed-target collisions at √sNN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are performed for the first time in fixed-target collisions at the LHC.

Original language	English
Article number	P05009
Pages (from-to)	1-30
Number of pages	30
Journal	Journal of Instrumentation
Volume	17
Issue number	5
DOIs	https://doi.org/10.1088/1748-0221/17/05/P05009
Publication status	Published - 5 May 2022

Keywords / Materials (for Non-textual outputs)

Pattern recognition
cluster finding
calibration and fitting methods
Performance of High Energy Physics Detectors
Simulation methods and programs

Access to Document

10.1088/1748-0221/17/05/P05009Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2111.01607

3 Finished
4 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Next generation photodetectors for future applications
Oliva, F. (Principal Investigator)
1/12/22 → 30/11/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

Cite this

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title = "Centrality determination in heavy-ion collisions with the LHCb detector",

abstract = "The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √sNN = 5 TeV and lead-neon fixed-target collisions at √sNN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are performed for the first time in fixed-target collisions at the LHC.",

keywords = "Pattern recognition, cluster finding, calibration and fitting methods, Performance of High Energy Physics Detectors, Simulation methods and programs",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Gediminas Sarpis",

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month = may,

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doi = "10.1088/1748-0221/17/05/P05009",

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T1 - Centrality determination in heavy-ion collisions with the LHCb detector

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Sarpis, Gediminas

PY - 2022/5/5

Y1 - 2022/5/5

N2 - The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √sNN = 5 TeV and lead-neon fixed-target collisions at √sNN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are performed for the first time in fixed-target collisions at the LHC.

AB - The centrality of heavy-ion collisions is directly related to the created medium in these interactions. A procedure to determine the centrality of collisions with the LHCb detector is implemented for lead-lead collisions at √sNN = 5 TeV and lead-neon fixed-target collisions at √sNN = 69 GeV. The energy deposits in the electromagnetic calorimeter are used to determine and define the centrality classes. The correspondence between the number of participants and the centrality for the lead-lead collisions is in good agreement with the correspondence found in other experiments, and the centrality measurements for the lead-neon collisions presented here are performed for the first time in fixed-target collisions at the LHC.

KW - Pattern recognition

KW - cluster finding

KW - calibration and fitting methods

KW - Performance of High Energy Physics Detectors

KW - Simulation methods and programs

U2 - 10.1088/1748-0221/17/05/P05009

DO - 10.1088/1748-0221/17/05/P05009

M3 - Article

SN - 1748-0221

VL - 17

SP - 1

EP - 30

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 5

M1 - P05009

ER -

Centrality determination in heavy-ion collisions with the LHCb detector

Abstract

Keywords / Materials (for Non-textual outputs)

Access to Document

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Projects

Experimental Particle Physics at the University of Edinburgh

Next generation photodetectors for future applications

Experimental Particle Physics at the University of Edinburgh

Cite this