Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle
Abstract A long-standing kinematic challenge in data analysis at hadron colliders is the determination of the masses of invisible particles. This issue is particularly relevant in searches for evidence of dark matter production, which remains one of the prominent targets of future collider experimen...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP03(2020)132 |
| _version_ | 1818862960394633216 |
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| author | Zachary Flowers Dong Woo Kang Quinn Meier Seong Chan Park Christopher Rogan |
| author_facet | Zachary Flowers Dong Woo Kang Quinn Meier Seong Chan Park Christopher Rogan |
| author_sort | Zachary Flowers |
| collection | DOAJ |
| description | Abstract A long-standing kinematic challenge in data analysis at hadron colliders is the determination of the masses of invisible particles. This issue is particularly relevant in searches for evidence of dark matter production, which remains one of the prominent targets of future collider experiments. In this paper, we show that the additional information from the precision timing measurements, provided by planned detector upgrades during the high- luminosity run of the LHC (HL-LHC), allows for previously unrealizable measurements of invisible particle kinematics. As a concrete example, we focus on the signal of pair produced long-lived particles (LLP1,2), each decaying with a displaced vertex to visible (V 1,2) and invisible (I 1,2) final state particles, pp → LLP1 + LLP2 → (V 1 + I 1) + (V 2 + I 2). We explicitly show that the complete kinematics of the invisible particles in such events can be determined with the addition of timing information, and evaluate the precision with which the masses of new long-lived and invisible particles can be determined. |
| first_indexed | 2024-12-19T10:08:10Z |
| format | Article |
| id | doaj.art-408094ec0f3d473c8c333e2ad8f3a814 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-19T10:08:10Z |
| publishDate | 2020-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-408094ec0f3d473c8c333e2ad8f3a8142022-12-21T20:26:26ZengSpringerOpenJournal of High Energy Physics1029-84792020-03-012020312010.1007/JHEP03(2020)132Timing information at HL-LHC: complete determination of masses of dark matter and long lived particleZachary Flowers0Dong Woo Kang1Quinn Meier2Seong Chan Park3Christopher Rogan4Department of Physics and Astronomy, University of KansasKorea Institute for Advanced StudyDepartment of Physics and Astronomy, University of KansasDepartment of Physics and IPAP, Yonsei UniversityDepartment of Physics and Astronomy, University of KansasAbstract A long-standing kinematic challenge in data analysis at hadron colliders is the determination of the masses of invisible particles. This issue is particularly relevant in searches for evidence of dark matter production, which remains one of the prominent targets of future collider experiments. In this paper, we show that the additional information from the precision timing measurements, provided by planned detector upgrades during the high- luminosity run of the LHC (HL-LHC), allows for previously unrealizable measurements of invisible particle kinematics. As a concrete example, we focus on the signal of pair produced long-lived particles (LLP1,2), each decaying with a displaced vertex to visible (V 1,2) and invisible (I 1,2) final state particles, pp → LLP1 + LLP2 → (V 1 + I 1) + (V 2 + I 2). We explicitly show that the complete kinematics of the invisible particles in such events can be determined with the addition of timing information, and evaluate the precision with which the masses of new long-lived and invisible particles can be determined.http://link.springer.com/article/10.1007/JHEP03(2020)132Beyond Standard ModelExoticsHadron-Hadron scattering (experiments)Lifetimeproton-proton scattering |
| spellingShingle | Zachary Flowers Dong Woo Kang Quinn Meier Seong Chan Park Christopher Rogan Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle Journal of High Energy Physics Beyond Standard Model Exotics Hadron-Hadron scattering (experiments) Lifetime proton-proton scattering |
| title | Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle |
| title_full | Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle |
| title_fullStr | Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle |
| title_full_unstemmed | Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle |
| title_short | Timing information at HL-LHC: complete determination of masses of dark matter and long lived particle |
| title_sort | timing information at hl lhc complete determination of masses of dark matter and long lived particle |
| topic | Beyond Standard Model Exotics Hadron-Hadron scattering (experiments) Lifetime proton-proton scattering |
| url | http://link.springer.com/article/10.1007/JHEP03(2020)132 |
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