Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model
We consider right-handed neutrino dark matter N1 in local U(1)Lμ−Lτ-extended Ma model. With the light U(1)μ−τ gauge boson (mZ′∼O(100) MeV) and small U(1)μ−τ gauge coupling (gZ′∼10−4–10−3) which can accommodate the muon (g−2) anomaly and is still allowed by other experimental constraints, we show tha...
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2016-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316001581 |
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doaj-4ce79fb473d04443b6247da5dab690872020-11-24T20:53:57ZengElsevierPhysics Letters B0370-26931873-24452016-05-01756C1510.1016/j.physletb.2016.02.062Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma modelSeungwon BaekWe consider right-handed neutrino dark matter N1 in local U(1)Lμ−Lτ-extended Ma model. With the light U(1)μ−τ gauge boson (mZ′∼O(100) MeV) and small U(1)μ−τ gauge coupling (gZ′∼10−4–10−3) which can accommodate the muon (g−2) anomaly and is still allowed by other experimental constraints, we show that we can get correct relic density of dark matter for wide range of dark matter mass (M1∼10–200 GeV), although the gauge coupling constant gZ′ is small. This is due to the fact that the annihilation cross section of dark matter pair is enhanced by M14/mZ′4 in the processes N1N1→Z′Z′ or N1N1→Z′H2. We also consider the constraints from direct detection, collider searches.http://www.sciencedirect.com/science/article/pii/S0370269316001581 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Seungwon Baek |
| spellingShingle |
Seungwon Baek Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model Physics Letters B |
| author_facet |
Seungwon Baek |
| author_sort |
Seungwon Baek |
| title |
Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model |
| title_short |
Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model |
| title_full |
Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model |
| title_fullStr |
Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model |
| title_full_unstemmed |
Dark matter and muon (g−2) in local U(1)Lμ−Lτ-extended Ma model |
| title_sort |
dark matter and muon (g−2) in local u(1)lμ−lτ-extended ma model |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 1873-2445 |
| publishDate |
2016-05-01 |
| description |
We consider right-handed neutrino dark matter N1 in local U(1)Lμ−Lτ-extended Ma model. With the light U(1)μ−τ gauge boson (mZ′∼O(100) MeV) and small U(1)μ−τ gauge coupling (gZ′∼10−4–10−3) which can accommodate the muon (g−2) anomaly and is still allowed by other experimental constraints, we show that we can get correct relic density of dark matter for wide range of dark matter mass (M1∼10–200 GeV), although the gauge coupling constant gZ′ is small. This is due to the fact that the annihilation cross section of dark matter pair is enhanced by M14/mZ′4 in the processes N1N1→Z′Z′ or N1N1→Z′H2. We also consider the constraints from direct detection, collider searches. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269316001581 |
| work_keys_str_mv |
AT seungwonbaek darkmatterandmuong2inlocalu1lmltextendedmamodel |
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1716795587662184448 |