Dark matter, dark radiation and gravitational waves from mirror Higgs parity

Dark matter, dark radiation and gravitational waves from mirror Higgs parity
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暗物质、暗辐射和来自镜子希格斯宇称的引力波

DOI:
10.1007/jhep02(2020)078
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发表时间:
2020
影响因子:
5.4
通讯作者:
Harigaya, Keisuke
Harigaya, Keisuke
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Dunsky, David;Hall, Lawrence J.;Harigaya, Keisuke

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一个精确的宇称复制了标准模型,给出了一个镜像标准模型,SM ParticipSM ′。这种"希格斯宇称"和镜像电弱对称性被镜像希格斯自发破缺,&lt;H ′&gt;= v ′,产生标准模型希格斯玻色子,近似SU(4)对称,四次耦合λ SM(v ′)&lt;$10 − 3。< H>镜像电磁是不间断的,暗物质由e ′和组成。通过动力学混合入口直接探测是可能的,在统一理论中,这个速率与质子衰变速率相关。在暴胀后的高再热温度下,e t暗物质的丰度是由镜中微子的冻结和稀释决定的。值得注意的是,这需要v ′(10 8 - 10 10)GeV,预测希格斯粒子在1 σ时的质量为123 ± 3 GeV,标准模型中微子的质量为(10 − 2 - 10 − 1)eV,与观测到的中微子质量一致。镜像QCD扇区表现出一阶相变,产生引力波,可能被未来的观测所探测到。镜像胶球衰变为镜像光子,产生暗辐射,其辐射效率为0。03-0. 4.在暴胀后的低再热温度下,e ′暗物质丰度由希格斯粒子或动力学混合入口从SM扇区冻结决定。
An exact parity replicates the Standard Model giving a Mirror Standard Model, SM↔ SM′. This “Higgs Parity” and the mirror electroweak symmetry are spontaneously broken by the mirror Higgs,< H′>= v′≫< H>, yielding the Standard Model Higgs as a Pseudo-Nambu-Goldstone Boson of an approximate SU (4) symmetry, with a quartic coupling λ SM (v′)∼ 10− 3. Mirror electromagnetism is unbroken and dark matter is composed of e′ and. Direct detection may be possible via the kinetic mixing portal, and in unified theories this rate is correlated with the proton decay rate. With a high reheat temperature after inflation, the e t dark matter abundance is determined by freeze-out followed by dilution from decays of mirror neutrinos, ν′→ ℓH. Remarkably, this requires v′∼(10 8–10 10) GeV, predicting a Higgs mass of 123±3 GeV at 1σ and a Standard Model neutrino mass of (10− 2–10− 1) eV, consistent with observed neutrino masses. The mirror QCD sector exhibits a first order phase transition producing gravitational waves that may be detected by future observations. Mirror glueballs decay to mirror photons giving dark radiation with∆ N eff∼ 0. 03–0. 4. With a low reheat temperature after inflation, the e′ dark matter abundance is determined by freeze-in from the SM sector by either the Higgs or kinetic mixing portal.
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