Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter
We explore the gravitational wave spectrum generated by string-wall structures in an SO(10) (Spin(10)) based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. This dark matter candidate is a linear combination of the Standard Model (SM) singlets present in the 126 and 16 dimensional Hi...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323004616 |
| _version_ | 1797676644744298496 |
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| author | Rinku Maji Wan-Il Park Qaisar Shafi |
| author_facet | Rinku Maji Wan-Il Park Qaisar Shafi |
| author_sort | Rinku Maji |
| collection | DOAJ |
| description | We explore the gravitational wave spectrum generated by string-wall structures in an SO(10) (Spin(10)) based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. This dark matter candidate is a linear combination of the Standard Model (SM) singlets present in the 126 and 16 dimensional Higgs fields. The Higgs 126-plet vacuum expectation value (VEV) 〈126H〉 leaves unbroken the Z2 subgroup of Z4, the center of SO(10). Among other things, this yields topologically stable cosmic strings with a string tension μ∼〈126H〉2. The subsequent (spontaneous) breaking of Z2 at a significantly lower scale by the 16-plet VEV 〈16H〉 leads to the appearance of domain walls bounded by the strings produced earlier. We display the gravitational wave spectrum for Gμ values varying between 10−15 and 10−9 (〈126H〉∼1011 - 1014 GeV), and 〈16H〉∼0.1 - 102 TeV range (G denotes Newton's constant.) These predictions can be tested, as we show, by a variety of (proposed) experiments including LISA, ET, CE and others. |
| first_indexed | 2024-03-11T22:32:16Z |
| format | Article |
| id | doaj.art-cac97cd4f0c146cdab97ba0b9ab45ce8 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-03-11T22:32:16Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-cac97cd4f0c146cdab97ba0b9ab45ce82023-09-23T05:10:22ZengElsevierPhysics Letters B0370-26932023-10-01845138127Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matterRinku Maji0Wan-Il Park1Qaisar Shafi2Laboratory for Symmetry and Structure of the Universe, Department of Physics, Jeonbuk National University, Jeonju 54896, Republic of Korea; Corresponding author.Division of Science Education and Institute of Fusion Science, Jeonbuk National University, Jeonju 54896, Republic of Korea; Instituto de Física Corpuscular, CSIC-Universitat de València, C/Catedrático José Beltrán 2, Paterna 46980, Spain; Departament de Física Teòrica, Universitat de València, C/ Dr. Moliner 50, Burjassot 46100, SpainBartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USAWe explore the gravitational wave spectrum generated by string-wall structures in an SO(10) (Spin(10)) based scenario of pseudo-Goldstone boson dark matter (pGDM) particle. This dark matter candidate is a linear combination of the Standard Model (SM) singlets present in the 126 and 16 dimensional Higgs fields. The Higgs 126-plet vacuum expectation value (VEV) 〈126H〉 leaves unbroken the Z2 subgroup of Z4, the center of SO(10). Among other things, this yields topologically stable cosmic strings with a string tension μ∼〈126H〉2. The subsequent (spontaneous) breaking of Z2 at a significantly lower scale by the 16-plet VEV 〈16H〉 leads to the appearance of domain walls bounded by the strings produced earlier. We display the gravitational wave spectrum for Gμ values varying between 10−15 and 10−9 (〈126H〉∼1011 - 1014 GeV), and 〈16H〉∼0.1 - 102 TeV range (G denotes Newton's constant.) These predictions can be tested, as we show, by a variety of (proposed) experiments including LISA, ET, CE and others.http://www.sciencedirect.com/science/article/pii/S0370269323004616 |
| spellingShingle | Rinku Maji Wan-Il Park Qaisar Shafi Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter Physics Letters B |
| title | Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter |
| title_full | Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter |
| title_fullStr | Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter |
| title_full_unstemmed | Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter |
| title_short | Gravitational waves from walls bounded by strings in SO(10) model of pseudo-Goldstone dark matter |
| title_sort | gravitational waves from walls bounded by strings in so 10 model of pseudo goldstone dark matter |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323004616 |
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