Asymmetric dark matter may not be light
It is often said that asymmetric dark matter is light compared to typical weakly interacting massive particles. Here we point out a simple scheme with a neutrino portal and $\mathscr{O}$(60 GeV) asymmetric dark matter which may be "added" to any standard electroweak baryogenesis scenario....
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Veröffentlicht in: | Physical review. D 2022-10, Vol.106 (7), Article 075008 |
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creator | Hall, Eleanor McGehee, Robert Murayama, Hitoshi Suter, Bethany |
description | It is often said that asymmetric dark matter is light compared to typical weakly interacting massive particles. Here we point out a simple scheme with a neutrino portal and $\mathscr{O}$(60 GeV) asymmetric dark matter which may be "added" to any standard electroweak baryogenesis scenario. The dark sector contains a copy of the Standard Model gauge group, as well as one matter family (at least), Higgs, and right-handed neutrino. After baryogenesis, some lepton asymmetry is transferred to the dark sector through the neutrino portal where dark sphalerons convert it into a dark baryon asymmetry. Dark hadrons form asymmetric dark matter and may be directly detected due to the vector portal. Surprisingly, even dark anti-neutrons may be directly detected if they have a sizeable electric dipole moment. The dark photons visibly decay in current and future experiments which probe complementary parameter space to dark matter direct detection searches. Exotic Higgs decays are excellent signals at future e+e- Higgs factories. |
doi_str_mv | 10.1103/PhysRevD.106.075008 |
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Here we point out a simple scheme with a neutrino portal and $\mathscr{O}$(60 GeV) asymmetric dark matter which may be "added" to any standard electroweak baryogenesis scenario. The dark sector contains a copy of the Standard Model gauge group, as well as one matter family (at least), Higgs, and right-handed neutrino. After baryogenesis, some lepton asymmetry is transferred to the dark sector through the neutrino portal where dark sphalerons convert it into a dark baryon asymmetry. Dark hadrons form asymmetric dark matter and may be directly detected due to the vector portal. Surprisingly, even dark anti-neutrons may be directly detected if they have a sizeable electric dipole moment. The dark photons visibly decay in current and future experiments which probe complementary parameter space to dark matter direct detection searches. 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D</title><description>It is often said that asymmetric dark matter is light compared to typical weakly interacting massive particles. Here we point out a simple scheme with a neutrino portal and $\mathscr{O}$(60 GeV) asymmetric dark matter which may be "added" to any standard electroweak baryogenesis scenario. The dark sector contains a copy of the Standard Model gauge group, as well as one matter family (at least), Higgs, and right-handed neutrino. After baryogenesis, some lepton asymmetry is transferred to the dark sector through the neutrino portal where dark sphalerons convert it into a dark baryon asymmetry. Dark hadrons form asymmetric dark matter and may be directly detected due to the vector portal. Surprisingly, even dark anti-neutrons may be directly detected if they have a sizeable electric dipole moment. The dark photons visibly decay in current and future experiments which probe complementary parameter space to dark matter direct detection searches. Exotic Higgs decays are excellent signals at future e+e- Higgs factories.</description><subject>ASTRONOMY AND ASTROPHYSICS</subject><subject>baryogenesis and leptogenesis</subject><subject>dark matter</subject><subject>extensions of fermion sector</subject><subject>extensions of gauge sector</subject><subject>extensions of Higgs sector</subject><subject>particle astrophysics</subject><subject>particle dark matter</subject><subject>particle phenomena</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><issn>2470-0010</issn><issn>2470-0029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LxDAURYMoOIzzC9wUN65a32uapFkO4ycMKKLrkKavtjptJQlC_72Vqqt7uRzu4jB2jpAhAr96aqfwTF_XGYLMQAmA8oit8kJBCpDr4_-OcMo2IbzDXCVohbhil9sw9T1F37mktv4j6W2M5OeYkmGMSUXJoXtr4xk7aewh0OY31-z19uZld5_uH-8edtt96niOMZW2IKKGa2V5gboiXggtreO1zGsNEgvXVKLSTa7KOhdKiQZ0JYsSwAmpiK_ZxfI7htiZ4LpIrnXjMJCLBkuNUqoZ4gvk_BiCp8Z8-q63fjII5seJ-XMyD9IsTvg3oA5UUw</recordid><startdate>20221010</startdate><enddate>20221010</enddate><creator>Hall, Eleanor</creator><creator>McGehee, Robert</creator><creator>Murayama, Hitoshi</creator><creator>Suter, Bethany</creator><general>American Physical Society (APS)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0002-4503-5771</orcidid><orcidid>https://orcid.org/0000-0002-9265-0494</orcidid><orcidid>https://orcid.org/0000000245035771</orcidid><orcidid>https://orcid.org/0000000292650494</orcidid></search><sort><creationdate>20221010</creationdate><title>Asymmetric dark matter may not be light</title><author>Hall, Eleanor ; McGehee, Robert ; Murayama, Hitoshi ; Suter, Bethany</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c321t-6a4eeef397a3419be34596ac3d62d90614cfb5b9f278d25775f09b64800c567e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>ASTRONOMY AND ASTROPHYSICS</topic><topic>baryogenesis and leptogenesis</topic><topic>dark matter</topic><topic>extensions of fermion sector</topic><topic>extensions of gauge sector</topic><topic>extensions of Higgs sector</topic><topic>particle astrophysics</topic><topic>particle dark matter</topic><topic>particle phenomena</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hall, Eleanor</creatorcontrib><creatorcontrib>McGehee, Robert</creatorcontrib><creatorcontrib>Murayama, Hitoshi</creatorcontrib><creatorcontrib>Suter, Bethany</creatorcontrib><creatorcontrib>Univ. of Michigan, Ann Arbor, MI (United States)</creatorcontrib><creatorcontrib>Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physical review. D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hall, Eleanor</au><au>McGehee, Robert</au><au>Murayama, Hitoshi</au><au>Suter, Bethany</au><aucorp>Univ. of Michigan, Ann Arbor, MI (United States)</aucorp><aucorp>Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Asymmetric dark matter may not be light</atitle><jtitle>Physical review. D</jtitle><date>2022-10-10</date><risdate>2022</risdate><volume>106</volume><issue>7</issue><artnum>075008</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>It is often said that asymmetric dark matter is light compared to typical weakly interacting massive particles. Here we point out a simple scheme with a neutrino portal and $\mathscr{O}$(60 GeV) asymmetric dark matter which may be "added" to any standard electroweak baryogenesis scenario. The dark sector contains a copy of the Standard Model gauge group, as well as one matter family (at least), Higgs, and right-handed neutrino. After baryogenesis, some lepton asymmetry is transferred to the dark sector through the neutrino portal where dark sphalerons convert it into a dark baryon asymmetry. Dark hadrons form asymmetric dark matter and may be directly detected due to the vector portal. Surprisingly, even dark anti-neutrons may be directly detected if they have a sizeable electric dipole moment. The dark photons visibly decay in current and future experiments which probe complementary parameter space to dark matter direct detection searches. 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subjects | ASTRONOMY AND ASTROPHYSICS baryogenesis and leptogenesis dark matter extensions of fermion sector extensions of gauge sector extensions of Higgs sector particle astrophysics particle dark matter particle phenomena PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
title | Asymmetric dark matter may not be light |
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