Almost closing the νMSM sterile neutrino dark matter window with NuSTAR
We use NuSTAR observations of the Galactic center to search for x-ray lines from the radiative decay of sterile neutrino dark matter. Finding no evidence of unknown lines, we set limits on the sterile neutrino mass and mixing angle. In most of the mass range 10–50 keV, these are now the strongest li...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017
|
| Online Access: | http://hdl.handle.net/1721.1/109799 |
| _version_ | 1811070332315893760 |
|---|---|
| author | Ng, Kenny C. Y. Beacom, John F. Hersh, Cora Horiuchi, Shunsaku Krivonos, Roman Perez, Kerstin M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Ng, Kenny C. Y. Beacom, John F. Hersh, Cora Horiuchi, Shunsaku Krivonos, Roman Perez, Kerstin M. |
| author_sort | Ng, Kenny C. Y. |
| collection | MIT |
| description | We use NuSTAR observations of the Galactic center to search for x-ray lines from the radiative decay of sterile neutrino dark matter. Finding no evidence of unknown lines, we set limits on the sterile neutrino mass and mixing angle. In most of the mass range 10–50 keV, these are now the strongest limits, at some masses improving upon previous limits by a factor of ∼10. In the νMSM framework, where additional constraints from dark matter production and structure formation apply, the allowed parameter space is reduced by more than half. Future NuSTAR observations may be able to cover much of the remaining parameter space. |
| first_indexed | 2024-09-23T08:34:16Z |
| format | Article |
| id | mit-1721.1/109799 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T08:34:16Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1097992022-09-23T13:00:59Z Almost closing the νMSM sterile neutrino dark matter window with NuSTAR Ng, Kenny C. Y. Beacom, John F. Hersh, Cora Horiuchi, Shunsaku Krivonos, Roman Perez, Kerstin M. Massachusetts Institute of Technology. Department of Physics Perez, Kerstin M. We use NuSTAR observations of the Galactic center to search for x-ray lines from the radiative decay of sterile neutrino dark matter. Finding no evidence of unknown lines, we set limits on the sterile neutrino mass and mixing angle. In most of the mass range 10–50 keV, these are now the strongest limits, at some masses improving upon previous limits by a factor of ∼10. In the νMSM framework, where additional constraints from dark matter production and structure formation apply, the allowed parameter space is reduced by more than half. Future NuSTAR observations may be able to cover much of the remaining parameter space. 2017-06-12T19:17:46Z 2017-06-12T19:17:46Z 2017-06 2016-12 2017-06-07T22:00:03Z Article http://purl.org/eprint/type/JournalArticle 2470-0010 2470-0029 http://hdl.handle.net/1721.1/109799 Perez, Kerstin et al. “Almost Closing the ν MSM Sterile Neutrino Dark Matter Window with NuSTAR.” Physical Review D 95.12 (2017): n. pag. © 2017 American Physical Society en http://dx.doi.org/10.1103/PhysRevD.95.123002 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Ng, Kenny C. Y. Beacom, John F. Hersh, Cora Horiuchi, Shunsaku Krivonos, Roman Perez, Kerstin M. Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title | Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title_full | Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title_fullStr | Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title_full_unstemmed | Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title_short | Almost closing the νMSM sterile neutrino dark matter window with NuSTAR |
| title_sort | almost closing the νmsm sterile neutrino dark matter window with nustar |
| url | http://hdl.handle.net/1721.1/109799 |
| work_keys_str_mv | AT ngkennycy almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar AT beacomjohnf almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar AT hershcora almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar AT horiuchishunsaku almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar AT krivonosroman almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar AT perezkerstinm almostclosingthenmsmsterileneutrinodarkmatterwindowwithnustar |