Probing superheavy dark matter with gravitational waves
Abstract We study the superheavy dark matter (DM) scenario in an extended B−L model, where one generation of right-handed neutrino ν R is the DM candidate. If there is a new lighter sterile neutrino that co-annihilate with the DM candidate, then the annihilation rate is exponentially enhanced, allow...
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2021
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oai:doaj.org-article:da3f5e7ea2f1481abca7868f0d1bc3c22021-12-05T12:25:16ZProbing superheavy dark matter with gravitational waves10.1007/JHEP11(2021)1751029-8479https://doaj.org/article/da3f5e7ea2f1481abca7868f0d1bc3c22021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)175https://doaj.org/toc/1029-8479Abstract We study the superheavy dark matter (DM) scenario in an extended B−L model, where one generation of right-handed neutrino ν R is the DM candidate. If there is a new lighter sterile neutrino that co-annihilate with the DM candidate, then the annihilation rate is exponentially enhanced, allowing a DM mass much heavier than the Griest-Kamionkowski bound (∼105 GeV). We demonstrate that a DM mass M νR ≳ 1013 GeV can be achieved. Although beyond the scale of any traditional DM searching strategy, this scenario is testable via gravitational waves (GWs) emitted by the cosmic strings from the U(1) B−L breaking. Quantitative calculations show that the DM mass O $$ \mathcal{O} $$ (109−1013 GeV) can be probed by future GW detectors.Ligong BianXuewen LiuKe-Pan XieSpringerOpenarticleBeyond Standard ModelCosmology of Theories beyond the SMNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-20 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
Beyond Standard Model Cosmology of Theories beyond the SM Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 |
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Beyond Standard Model Cosmology of Theories beyond the SM Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Ligong Bian Xuewen Liu Ke-Pan Xie Probing superheavy dark matter with gravitational waves |
| description |
Abstract We study the superheavy dark matter (DM) scenario in an extended B−L model, where one generation of right-handed neutrino ν R is the DM candidate. If there is a new lighter sterile neutrino that co-annihilate with the DM candidate, then the annihilation rate is exponentially enhanced, allowing a DM mass much heavier than the Griest-Kamionkowski bound (∼105 GeV). We demonstrate that a DM mass M νR ≳ 1013 GeV can be achieved. Although beyond the scale of any traditional DM searching strategy, this scenario is testable via gravitational waves (GWs) emitted by the cosmic strings from the U(1) B−L breaking. Quantitative calculations show that the DM mass O $$ \mathcal{O} $$ (109−1013 GeV) can be probed by future GW detectors. |
| format |
article |
| author |
Ligong Bian Xuewen Liu Ke-Pan Xie |
| author_facet |
Ligong Bian Xuewen Liu Ke-Pan Xie |
| author_sort |
Ligong Bian |
| title |
Probing superheavy dark matter with gravitational waves |
| title_short |
Probing superheavy dark matter with gravitational waves |
| title_full |
Probing superheavy dark matter with gravitational waves |
| title_fullStr |
Probing superheavy dark matter with gravitational waves |
| title_full_unstemmed |
Probing superheavy dark matter with gravitational waves |
| title_sort |
probing superheavy dark matter with gravitational waves |
| publisher |
SpringerOpen |
| publishDate |
2021 |
| url |
https://doaj.org/article/da3f5e7ea2f1481abca7868f0d1bc3c2 |
| work_keys_str_mv |
AT ligongbian probingsuperheavydarkmatterwithgravitationalwaves AT xuewenliu probingsuperheavydarkmatterwithgravitationalwaves AT kepanxie probingsuperheavydarkmatterwithgravitationalwaves |
| _version_ |
1718371989575434240 |