Searches for QCD instantons with forward proton tagging
Abstract We study the possibility to observe heavy ( $$M_{\textrm{inst}}> 60$$ M inst > 60 GeV) QCD instantons at the LHC in events with one or two tagged leading protons including fast simulation of detector and pile-up effects. We show that the expected instanton signal in a single-tagged c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-01-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11178-7 |
| _version_ | 1797863754183999488 |
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| author | Marek Tasevsky Valery Khoze Daniel Milne Michail Ryskin |
| author_facet | Marek Tasevsky Valery Khoze Daniel Milne Michail Ryskin |
| author_sort | Marek Tasevsky |
| collection | DOAJ |
| description | Abstract We study the possibility to observe heavy ( $$M_{\textrm{inst}}> 60$$ M inst > 60 GeV) QCD instantons at the LHC in events with one or two tagged leading protons including fast simulation of detector and pile-up effects. We show that the expected instanton signal in a single-tagged configuration is strongly affected by central detector and pile-up effects. For double-tagged approach, where larger integrated luminosities and hence larger pile-up contaminations need to be considered, the combinatorial background overwhelms the expected signal. We suggest that additional time information about tracks at central and forward rapidities would be crucial for potential improvements. |
| first_indexed | 2024-04-09T22:41:46Z |
| format | Article |
| id | doaj.art-9541efb4158c405ca9d0cd7fcddfcef6 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-09T22:41:46Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-9541efb4158c405ca9d0cd7fcddfcef62023-03-22T12:10:07ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-01-0183111210.1140/epjc/s10052-023-11178-7Searches for QCD instantons with forward proton taggingMarek Tasevsky0Valery Khoze1Daniel Milne2Michail Ryskin3Institute of Physics of the Czech Academy of SciencesDepartment of Physics, University of DurhamDepartment of Physics, University of DurhamPetersburg Nuclear Physics Institute, NRC “Kurchatov Institute”Abstract We study the possibility to observe heavy ( $$M_{\textrm{inst}}> 60$$ M inst > 60 GeV) QCD instantons at the LHC in events with one or two tagged leading protons including fast simulation of detector and pile-up effects. We show that the expected instanton signal in a single-tagged configuration is strongly affected by central detector and pile-up effects. For double-tagged approach, where larger integrated luminosities and hence larger pile-up contaminations need to be considered, the combinatorial background overwhelms the expected signal. We suggest that additional time information about tracks at central and forward rapidities would be crucial for potential improvements.https://doi.org/10.1140/epjc/s10052-023-11178-7 |
| spellingShingle | Marek Tasevsky Valery Khoze Daniel Milne Michail Ryskin Searches for QCD instantons with forward proton tagging European Physical Journal C: Particles and Fields |
| title | Searches for QCD instantons with forward proton tagging |
| title_full | Searches for QCD instantons with forward proton tagging |
| title_fullStr | Searches for QCD instantons with forward proton tagging |
| title_full_unstemmed | Searches for QCD instantons with forward proton tagging |
| title_short | Searches for QCD instantons with forward proton tagging |
| title_sort | searches for qcd instantons with forward proton tagging |
| url | https://doi.org/10.1140/epjc/s10052-023-11178-7 |
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