Tracking of charged particles with nanosecond lifetimes at LHCb
(2024) In European Physical Journal C. Particles and Fields 84(7).- Abstract
- A method is presented to reconstruct charged particles with lifetimes between 10ps and 10ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the Ξ- baryon as a benchmark, the method is demonstrated with simulated events and proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 2.0fb-1 collected with the LHCb detector in 2018. Significant improvements in the angular resolution and the signal purity are obtained. The method is implemented as part of the LHCb Run 3 event trigger in a set of requirements to select detached hyperons. This is the first demonstration of the applicability of this approach at the LHC, and the first to show... (More)
- A method is presented to reconstruct charged particles with lifetimes between 10ps and 10ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the Ξ- baryon as a benchmark, the method is demonstrated with simulated events and proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 2.0fb-1 collected with the LHCb detector in 2018. Significant improvements in the angular resolution and the signal purity are obtained. The method is implemented as part of the LHCb Run 3 event trigger in a set of requirements to select detached hyperons. This is the first demonstration of the applicability of this approach at the LHC, and the first to show its scaling with instantaneous luminosity. © The Author(s) 2024. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/6ddc93ad-9553-400f-bfd1-032575603a1e
- author
- Aaij, R. ; Ruiz-Vidal, Joan LU and Zunica, G.
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Luminance, Angular resolution, Decay products, Event trigger, Integrated luminosity, Proton proton collisions, Scalings, Simulated events, Charged particles
- in
- European Physical Journal C. Particles and Fields
- volume
- 84
- issue
- 7
- article number
- 761
- publisher
- Springer
- external identifiers
-
- scopus:85200335358
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-024-12993-2
- language
- English
- LU publication?
- yes
- id
- 6ddc93ad-9553-400f-bfd1-032575603a1e
- date added to LUP
- 2024-09-03 14:46:23
- date last changed
- 2024-09-03 14:46:57
@article{6ddc93ad-9553-400f-bfd1-032575603a1e,
abstract = {{A method is presented to reconstruct charged particles with lifetimes between 10ps and 10ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the Ξ- baryon as a benchmark, the method is demonstrated with simulated events and proton-proton collision data at s=13TeV, corresponding to an integrated luminosity of 2.0fb-1 collected with the LHCb detector in 2018. Significant improvements in the angular resolution and the signal purity are obtained. The method is implemented as part of the LHCb Run 3 event trigger in a set of requirements to select detached hyperons. This is the first demonstration of the applicability of this approach at the LHC, and the first to show its scaling with instantaneous luminosity. © The Author(s) 2024.}},
author = {{Aaij, R. and Ruiz-Vidal, Joan and Zunica, G.}},
issn = {{1434-6044}},
keywords = {{Luminance; Angular resolution; Decay products; Event trigger; Integrated luminosity; Proton proton collisions; Scalings; Simulated events; Charged particles}},
language = {{eng}},
number = {{7}},
publisher = {{Springer}},
series = {{European Physical Journal C. Particles and Fields}},
title = {{Tracking of charged particles with nanosecond lifetimes at LHCb}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-024-12993-2}},
doi = {{10.1140/epjc/s10052-024-12993-2}},
volume = {{84}},
year = {{2024}},
}