νR Dark matter-philic Higgs for 3.5 keV X-ray signal
We suggest a new model of 7 keV right-handed neutrino dark matter inspired by a recent observation of 3.5 keV X-ray line signal in the XMM-Newton observatory. It is difficult to derive the tiny masses with a suitable left–right mixing of the neutrino in a framework of ordinary simple type-I seesaw m...
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| Format: | Article |
| Language: | English |
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Elsevier
2015-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315000775 |
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doaj-b4aad2b1691f4f82bfb8c8f2ebd2e6e82020-11-24T23:50:15ZengElsevierPhysics Letters B0370-26932015-04-017433538νR Dark matter-philic Higgs for 3.5 keV X-ray signalNaoyuki Haba0Hiroyuki Ishida1Ryo Takahashi2Graduate School of Science and Engineering, Shimane University, Matsue, 690-8504, JapanCorresponding author.; Graduate School of Science and Engineering, Shimane University, Matsue, 690-8504, JapanGraduate School of Science and Engineering, Shimane University, Matsue, 690-8504, JapanWe suggest a new model of 7 keV right-handed neutrino dark matter inspired by a recent observation of 3.5 keV X-ray line signal in the XMM-Newton observatory. It is difficult to derive the tiny masses with a suitable left–right mixing of the neutrino in a framework of ordinary simple type-I seesaw mechanism. We introduce a new Higgs boson, a dark matter-philic Higgs boson, in which the smallness of its vacuum expectation value can be achieved. We investigate suitable parameter regions where the observed dark matter properties are satisfied. We find that the vacuum expectation value of dark matter-philic Higgs boson should be about 0.17 GeV.http://www.sciencedirect.com/science/article/pii/S0370269315000775 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Naoyuki Haba Hiroyuki Ishida Ryo Takahashi |
| spellingShingle |
Naoyuki Haba Hiroyuki Ishida Ryo Takahashi νR Dark matter-philic Higgs for 3.5 keV X-ray signal Physics Letters B |
| author_facet |
Naoyuki Haba Hiroyuki Ishida Ryo Takahashi |
| author_sort |
Naoyuki Haba |
| title |
νR Dark matter-philic Higgs for 3.5 keV X-ray signal |
| title_short |
νR Dark matter-philic Higgs for 3.5 keV X-ray signal |
| title_full |
νR Dark matter-philic Higgs for 3.5 keV X-ray signal |
| title_fullStr |
νR Dark matter-philic Higgs for 3.5 keV X-ray signal |
| title_full_unstemmed |
νR Dark matter-philic Higgs for 3.5 keV X-ray signal |
| title_sort |
νr dark matter-philic higgs for 3.5 kev x-ray signal |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2015-04-01 |
| description |
We suggest a new model of 7 keV right-handed neutrino dark matter inspired by a recent observation of 3.5 keV X-ray line signal in the XMM-Newton observatory. It is difficult to derive the tiny masses with a suitable left–right mixing of the neutrino in a framework of ordinary simple type-I seesaw mechanism. We introduce a new Higgs boson, a dark matter-philic Higgs boson, in which the smallness of its vacuum expectation value can be achieved. We investigate suitable parameter regions where the observed dark matter properties are satisfied. We find that the vacuum expectation value of dark matter-philic Higgs boson should be about 0.17 GeV. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269315000775 |
| work_keys_str_mv |
AT naoyukihaba nrdarkmatterphilichiggsfor35kevxraysignal AT hiroyukiishida nrdarkmatterphilichiggsfor35kevxraysignal AT ryotakahashi nrdarkmatterphilichiggsfor35kevxraysignal |
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