Probing dark matter particles at CEPC
Abstract We investigate the capability of the future electron collider CEPC in probing the parameter space of several dark matter models, including millicharged dark matter models, Z ′ portal dark matter models, and effective dark matter operators. In our analysis, the monophoton final state is used...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2019-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP06(2019)009 |
| _version_ | 1818514892595920896 |
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| author | Zuowei Liu Yong-Heng Xu Yu Zhang |
| author_facet | Zuowei Liu Yong-Heng Xu Yu Zhang |
| author_sort | Zuowei Liu |
| collection | DOAJ |
| description | Abstract We investigate the capability of the future electron collider CEPC in probing the parameter space of several dark matter models, including millicharged dark matter models, Z ′ portal dark matter models, and effective dark matter operators. In our analysis, the monophoton final state is used as the primary channel to detect dark matter models at CEPC. To maximize the signal to background significance, we study the energy and angular distributions of the monophoton channel arising from dark matter models and from the standard model to design a set of detector cuts. For the Z ′ portal dark matter, we also analyze the Z ′ boson visible decay channel which is found to be complementary to the monophoton channel in certain parameter space. The CEPC reach in the parameter space of dark matter models is also put in comparison with Xenon1T. We find that CEPC has the unprecedented sensitivity to certain parameter space for the dark matter models considered; for example, CEPC can improve the limits on millicharge by one order of magnitude than previous collider experiments for O 1 − 100 $$ \mathcal{O}(1)-100 $$ GeV dark matter. |
| first_indexed | 2024-12-11T00:21:54Z |
| format | Article |
| id | doaj.art-c3df421d67574493ba2194087b0cf621 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-11T00:21:54Z |
| publishDate | 2019-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-c3df421d67574493ba2194087b0cf6212022-12-22T01:27:42ZengSpringerOpenJournal of High Energy Physics1029-84792019-06-012019612410.1007/JHEP06(2019)009Probing dark matter particles at CEPCZuowei Liu0Yong-Heng Xu1Yu Zhang2Department of Physics, Nanjing UniversityDepartment of Physics, Nanjing UniversityCAS Center for Excellence in Particle PhysicsAbstract We investigate the capability of the future electron collider CEPC in probing the parameter space of several dark matter models, including millicharged dark matter models, Z ′ portal dark matter models, and effective dark matter operators. In our analysis, the monophoton final state is used as the primary channel to detect dark matter models at CEPC. To maximize the signal to background significance, we study the energy and angular distributions of the monophoton channel arising from dark matter models and from the standard model to design a set of detector cuts. For the Z ′ portal dark matter, we also analyze the Z ′ boson visible decay channel which is found to be complementary to the monophoton channel in certain parameter space. The CEPC reach in the parameter space of dark matter models is also put in comparison with Xenon1T. We find that CEPC has the unprecedented sensitivity to certain parameter space for the dark matter models considered; for example, CEPC can improve the limits on millicharge by one order of magnitude than previous collider experiments for O 1 − 100 $$ \mathcal{O}(1)-100 $$ GeV dark matter.http://link.springer.com/article/10.1007/JHEP06(2019)009Beyond Standard ModelCosmology of Theories beyond the SM |
| spellingShingle | Zuowei Liu Yong-Heng Xu Yu Zhang Probing dark matter particles at CEPC Journal of High Energy Physics Beyond Standard Model Cosmology of Theories beyond the SM |
| title | Probing dark matter particles at CEPC |
| title_full | Probing dark matter particles at CEPC |
| title_fullStr | Probing dark matter particles at CEPC |
| title_full_unstemmed | Probing dark matter particles at CEPC |
| title_short | Probing dark matter particles at CEPC |
| title_sort | probing dark matter particles at cepc |
| topic | Beyond Standard Model Cosmology of Theories beyond the SM |
| url | http://link.springer.com/article/10.1007/JHEP06(2019)009 |
| work_keys_str_mv | AT zuoweiliu probingdarkmatterparticlesatcepc AT yonghengxu probingdarkmatterparticlesatcepc AT yuzhang probingdarkmatterparticlesatcepc |