A natural scotogenic model for neutrino mass & dark matter
In this letter, we propose an extension of the scotogenic model where singlet Majorana particle can be dark matter (DM) without the need of a highly suppressed scalar coupling of the order O(10−10). For that, the SM is extended with three singlet Majorana fermions, an inert scalar doublet, and two (...
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2021-03-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321000174 |
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doaj-c66deea3d9a54e6fa9b1e6420c583fc12021-02-25T04:16:36ZengElsevierPhysics Letters B0370-26932021-03-01814136077A natural scotogenic model for neutrino mass & dark matterAmine Ahriche0Adil Jueid1Salah Nasri2Department of Applied Physics and Astronomy, University of Sharjah, P.O. Box 27272 Sharjah, United Arab Emirates; The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, I-34014, Trieste, Italy; Laboratoire de Physique des Particules et Physique Statistique, Ecole Normale Superieure, BP 92 Vieux Kouba, DZ-16050 Algiers, AlgeriaDepartment of Physics, Konkuk University, Seoul 05029, Republic of KoreaDepartment of physics, United Arab Emirates University, Al-Ain, United Arab Emirates; The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, I-34014, Trieste, Italy; Corresponding author.In this letter, we propose an extension of the scotogenic model where singlet Majorana particle can be dark matter (DM) without the need of a highly suppressed scalar coupling of the order O(10−10). For that, the SM is extended with three singlet Majorana fermions, an inert scalar doublet, and two (a complex and a real) singlet scalars, with a global Z4 symmetry that is spontaneously broken into Z2 at a scale higher than the electroweak one by the vev of the complex singlet scalar. In this setup, the smallness of neutrino mass is achieved via the cancellation between three diagrams a la scotogenic, a DM candidate that is viable for a large mass range; and the phenomenology is richer than the minimal scotogenic model.http://www.sciencedirect.com/science/article/pii/S0370269321000174 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Amine Ahriche Adil Jueid Salah Nasri |
| spellingShingle |
Amine Ahriche Adil Jueid Salah Nasri A natural scotogenic model for neutrino mass & dark matter Physics Letters B |
| author_facet |
Amine Ahriche Adil Jueid Salah Nasri |
| author_sort |
Amine Ahriche |
| title |
A natural scotogenic model for neutrino mass & dark matter |
| title_short |
A natural scotogenic model for neutrino mass & dark matter |
| title_full |
A natural scotogenic model for neutrino mass & dark matter |
| title_fullStr |
A natural scotogenic model for neutrino mass & dark matter |
| title_full_unstemmed |
A natural scotogenic model for neutrino mass & dark matter |
| title_sort |
natural scotogenic model for neutrino mass & dark matter |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2021-03-01 |
| description |
In this letter, we propose an extension of the scotogenic model where singlet Majorana particle can be dark matter (DM) without the need of a highly suppressed scalar coupling of the order O(10−10). For that, the SM is extended with three singlet Majorana fermions, an inert scalar doublet, and two (a complex and a real) singlet scalars, with a global Z4 symmetry that is spontaneously broken into Z2 at a scale higher than the electroweak one by the vev of the complex singlet scalar. In this setup, the smallness of neutrino mass is achieved via the cancellation between three diagrams a la scotogenic, a DM candidate that is viable for a large mass range; and the phenomenology is richer than the minimal scotogenic model. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269321000174 |
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