Early matter domination at colliders: Long live the glueball!
We prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics ind...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325000528 |
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| author | Fady Bishara Filippo Sala Kai Schmidt-Hoberg |
| author_facet | Fady Bishara Filippo Sala Kai Schmidt-Hoberg |
| author_sort | Fady Bishara |
| collection | DOAJ |
| description | We prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics induced by their decay. We then show that searches for long-lived glueballs from Higgs decays test increasing values of dilution at ATLAS and CMS, CODEX-b, ANUBIS and MATHUSLA. We identify the general features that make models of early matter domination discoverable via LLPs at colliders. Our study provides a quantitative physics motivation to test longer lifetimes. |
| format | Article |
| id | doaj-art-1076db3186dd45d88bbe788c59ca7795 |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-1076db3186dd45d88bbe788c59ca77952025-02-10T04:34:12ZengElsevierPhysics Letters B0370-26932025-02-01861139292Early matter domination at colliders: Long live the glueball!Fady Bishara0Filippo Sala1Kai Schmidt-Hoberg2Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, GermanyDipartimento di Fisica e Astronomia, Università di Bologna and INFN, Via Irnerio 46, I-40126 Bologna, Italy; Corresponding author.Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, GermanyWe prove that collider searches for long-lived particles (LLPs) can test the dynamics responsible for matter domination in the early universe. In this letter we concentrate on the specific example of glueballs from a GeV-scale confining dark sector and compute the dilution of cosmological relics induced by their decay. We then show that searches for long-lived glueballs from Higgs decays test increasing values of dilution at ATLAS and CMS, CODEX-b, ANUBIS and MATHUSLA. We identify the general features that make models of early matter domination discoverable via LLPs at colliders. Our study provides a quantitative physics motivation to test longer lifetimes.http://www.sciencedirect.com/science/article/pii/S0370269325000528 |
| spellingShingle | Fady Bishara Filippo Sala Kai Schmidt-Hoberg Early matter domination at colliders: Long live the glueball! Physics Letters B |
| title | Early matter domination at colliders: Long live the glueball! |
| title_full | Early matter domination at colliders: Long live the glueball! |
| title_fullStr | Early matter domination at colliders: Long live the glueball! |
| title_full_unstemmed | Early matter domination at colliders: Long live the glueball! |
| title_short | Early matter domination at colliders: Long live the glueball! |
| title_sort | early matter domination at colliders long live the glueball |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325000528 |
| work_keys_str_mv | AT fadybishara earlymatterdominationatcolliderslonglivetheglueball AT filipposala earlymatterdominationatcolliderslonglivetheglueball AT kaischmidthoberg earlymatterdominationatcolliderslonglivetheglueball |