Tracking of charged particles with nanosecond lifetimes at LHCb
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 event...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2024
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| Online Access: | https://hdl.handle.net/1721.1/155944 |
| _version_ | 1811072664060559360 |
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| author | Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adams, J. A. Adefisoye, A. A. Adeva, B. Adinolfi, M. Adlarson, P. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Aliouche, Z. |
| author_facet | Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adams, J. A. Adefisoye, A. A. Adeva, B. Adinolfi, M. Adlarson, P. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Aliouche, Z. |
| author_sort | Aaij, R. |
| collection | MIT |
| description | 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. |
| first_indexed | 2024-09-23T09:09:36Z |
| format | Article |
| id | mit-1721.1/155944 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T09:09:36Z |
| publishDate | 2024 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1559442024-08-06T03:51:23Z Tracking of charged particles with nanosecond lifetimes at LHCb Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adams, J. A. Adefisoye, A. A. Adeva, B. Adinolfi, M. Adlarson, P. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Aliouche, Z. 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. 2024-08-05T18:24:14Z 2024-08-05T18:24:14Z 2024-07-30 2024-08-04T03:14:03Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/155944 LHCb Collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Tracking of charged particles with nanosecond lifetimes at LHCb. Eur. Phys. J. C 84, 761 (2024). PUBLISHER_CC en 10.1140/epjc/s10052-024-12993-2 The European Physical Journal C Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Aaij, R. Abdelmotteleb, A. S. W. Beteta, C. A. Abudinén, F. Ackernley, T. Adams, J. A. Adefisoye, A. A. Adeva, B. Adinolfi, M. Adlarson, P. Agapopoulou, C. Aidala, C. A. Ajaltouni, Z. Akar, S. Akiba, K. Albicocco, P. Albrecht, J. Alessio, F. Alexander, M. Aliouche, Z. Tracking of charged particles with nanosecond lifetimes at LHCb |
| title | Tracking of charged particles with nanosecond lifetimes at LHCb |
| title_full | Tracking of charged particles with nanosecond lifetimes at LHCb |
| title_fullStr | Tracking of charged particles with nanosecond lifetimes at LHCb |
| title_full_unstemmed | Tracking of charged particles with nanosecond lifetimes at LHCb |
| title_short | Tracking of charged particles with nanosecond lifetimes at LHCb |
| title_sort | tracking of charged particles with nanosecond lifetimes at lhcb |
| url | https://hdl.handle.net/1721.1/155944 |
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