Light Z′ and dark matter from U(1)X gauge symmetry
We consider a U(1)X gauge symmetry extension of the Standard Model (SM) with a Z′-portal Majorana fermion dark matter that allows for a relatively light gauge boson Z′ with mass of 10 MeV− a few GeV and a much heavier dark matter through the freeze-in mechanism. In a second scenario the roles are re...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320306481 |
| _version_ | 1818972372457226240 |
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| author | Nobuchika Okada Satomi Okada Qaisar Shafi |
| author_facet | Nobuchika Okada Satomi Okada Qaisar Shafi |
| author_sort | Nobuchika Okada |
| collection | DOAJ |
| description | We consider a U(1)X gauge symmetry extension of the Standard Model (SM) with a Z′-portal Majorana fermion dark matter that allows for a relatively light gauge boson Z′ with mass of 10 MeV− a few GeV and a much heavier dark matter through the freeze-in mechanism. In a second scenario the roles are reversed, and the dark matter mass, in the keV range or so, lies well below the Z′ mass, say, ∼1 GeV. We outline the parameter space that can be explored for these two scenarios at the future Lifetime Frontier experiments including Belle-II, FASER, LDMX and SHiP. |
| first_indexed | 2024-12-20T15:07:13Z |
| format | Article |
| id | doaj.art-fcffef52c4d14f7fba8e70374179bbd5 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-20T15:07:13Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-fcffef52c4d14f7fba8e70374179bbd52022-12-21T19:36:27ZengElsevierPhysics Letters B0370-26932020-11-01810135845Light Z′ and dark matter from U(1)X gauge symmetryNobuchika Okada0Satomi Okada1Qaisar Shafi2Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USA; Corresponding author.Department of Physics and Astronomy, University of Alabama, Tuscaloosa, AL 35487, USABartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USAWe consider a U(1)X gauge symmetry extension of the Standard Model (SM) with a Z′-portal Majorana fermion dark matter that allows for a relatively light gauge boson Z′ with mass of 10 MeV− a few GeV and a much heavier dark matter through the freeze-in mechanism. In a second scenario the roles are reversed, and the dark matter mass, in the keV range or so, lies well below the Z′ mass, say, ∼1 GeV. We outline the parameter space that can be explored for these two scenarios at the future Lifetime Frontier experiments including Belle-II, FASER, LDMX and SHiP.http://www.sciencedirect.com/science/article/pii/S0370269320306481 |
| spellingShingle | Nobuchika Okada Satomi Okada Qaisar Shafi Light Z′ and dark matter from U(1)X gauge symmetry Physics Letters B |
| title | Light Z′ and dark matter from U(1)X gauge symmetry |
| title_full | Light Z′ and dark matter from U(1)X gauge symmetry |
| title_fullStr | Light Z′ and dark matter from U(1)X gauge symmetry |
| title_full_unstemmed | Light Z′ and dark matter from U(1)X gauge symmetry |
| title_short | Light Z′ and dark matter from U(1)X gauge symmetry |
| title_sort | light z and dark matter from u 1 x gauge symmetry |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320306481 |
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