Lepton collider as a window to reheating via freezing in dark matter detection. Part II
Abstract Dark matter (DM) genesis via Ultraviolet (UV) freeze-in embeds the seed of reheating temperature and dynamics in its relic density. Thus, discovery of such a DM candidate can possibly open the window for post-inflationary dynamics. However, there are several challenges in this exercise, as...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-07-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP07(2025)157 |
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| author | Basabendu Barman Subhaditya Bhattacharya Sahabub Jahedi Dipankar Pradhan Abhik Sarkar |
| author_facet | Basabendu Barman Subhaditya Bhattacharya Sahabub Jahedi Dipankar Pradhan Abhik Sarkar |
| author_sort | Basabendu Barman |
| collection | DOAJ |
| description | Abstract Dark matter (DM) genesis via Ultraviolet (UV) freeze-in embeds the seed of reheating temperature and dynamics in its relic density. Thus, discovery of such a DM candidate can possibly open the window for post-inflationary dynamics. However, there are several challenges in this exercise, as freezing-in DM possesses feeble interaction with the visible sector and therefore very low production cross-section at the collider. We show that mono-photon (and dilepton) signal at the ILC, arising from DM effective operators connected to the SM field strength tensors, can still warrant a signal discovery. We study both the scalar and fermionic DM production during reheating via UV freeze-in, when the inflaton oscillates at the bottom of a general monomial potential. Interestingly, we see, right DM abundance can be achieved only in the case of bosonic reheating scenario, satisfying bounds from big bang nucleosynthesis (BBN). This provides a unique correlation between collider signal and the post-inflationary dynamics of the Universe within single-field inflationary models. |
| format | Article |
| id | doaj-art-ae8ba4a2c0f04fbaa427f14d44409604 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-ae8ba4a2c0f04fbaa427f14d444096042025-08-20T03:45:44ZengSpringerOpenJournal of High Energy Physics1029-84792025-07-012025712910.1007/JHEP07(2025)157Lepton collider as a window to reheating via freezing in dark matter detection. Part IIBasabendu Barman0Subhaditya Bhattacharya1Sahabub Jahedi2Dipankar Pradhan3Abhik Sarkar4Department of Physics, School of Engineering and Sciences, SRM University-APDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiDepartment of Physics, Indian Institute of Technology GuwahatiAbstract Dark matter (DM) genesis via Ultraviolet (UV) freeze-in embeds the seed of reheating temperature and dynamics in its relic density. Thus, discovery of such a DM candidate can possibly open the window for post-inflationary dynamics. However, there are several challenges in this exercise, as freezing-in DM possesses feeble interaction with the visible sector and therefore very low production cross-section at the collider. We show that mono-photon (and dilepton) signal at the ILC, arising from DM effective operators connected to the SM field strength tensors, can still warrant a signal discovery. We study both the scalar and fermionic DM production during reheating via UV freeze-in, when the inflaton oscillates at the bottom of a general monomial potential. Interestingly, we see, right DM abundance can be achieved only in the case of bosonic reheating scenario, satisfying bounds from big bang nucleosynthesis (BBN). This provides a unique correlation between collider signal and the post-inflationary dynamics of the Universe within single-field inflationary models.https://doi.org/10.1007/JHEP07(2025)157Dark Matter at CollidersEarly Universe Particle PhysicsParticle Nature of Dark Matter |
| spellingShingle | Basabendu Barman Subhaditya Bhattacharya Sahabub Jahedi Dipankar Pradhan Abhik Sarkar Lepton collider as a window to reheating via freezing in dark matter detection. Part II Journal of High Energy Physics Dark Matter at Colliders Early Universe Particle Physics Particle Nature of Dark Matter |
| title | Lepton collider as a window to reheating via freezing in dark matter detection. Part II |
| title_full | Lepton collider as a window to reheating via freezing in dark matter detection. Part II |
| title_fullStr | Lepton collider as a window to reheating via freezing in dark matter detection. Part II |
| title_full_unstemmed | Lepton collider as a window to reheating via freezing in dark matter detection. Part II |
| title_short | Lepton collider as a window to reheating via freezing in dark matter detection. Part II |
| title_sort | lepton collider as a window to reheating via freezing in dark matter detection part ii |
| topic | Dark Matter at Colliders Early Universe Particle Physics Particle Nature of Dark Matter |
| url | https://doi.org/10.1007/JHEP07(2025)157 |
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