Dark matter freeze-out during SU(2)L confinement

Howard, J.; Ipek, Seyda; Tait, Tim M. P.; Turner, Jessica

doi:10.1007/jhep02(2022)047

Cited by 3 publications

(2 citation statements)

References 45 publications

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“…This approach can be motivated by our lack of knowledge of the cosmology during the epoch in which the DM relic abundance in these models is produced (see e.g. [42][43][44][45][46][47]). In this case, one should be aware that different assumptions about the dark matter production would typically select only a small portion of the parameter space considered.…”

Section: Snowmass2021 Cosmic Frontier Dark Matter Direct Detection To...mentioning

confidence: 99%

Snowmass2021 Cosmic Frontier Dark Matter Direct Detection to the Neutrino Fog

Akerib¹,

Cushman²,

Dahl³

et al. 2022

Preprint

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We present a summary of future prospects for direct detection of dark matter within the GeV/c 2 to TeV/c 2 mass range. This is paired with a new definition of the neutrino fog in order to better quantify the rate of diminishing returns on sensitivity due to irreducible neutrino backgrounds. A survey of dark matter candidates predicted to fall within this mass range demonstrates that fully testing multiple well-motivated theories will require expanding the currently-funded generation of experiments down to and past the neutrino fog. We end with the status and plans for next-generation experiments and novel R&D concepts which will get us there.

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Section: Snowmass2021 Cosmic Frontier Dark Matter Direct Detection To...mentioning

confidence: 99%

Snowmass2021 Cosmic Frontier Dark Matter Direct Detection to the Neutrino Fog

Akerib¹,

Cushman²,

Dahl³

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Rolling to the minimum releases the initial vacuum energy as cold dark matter, whose abundance depends on the physics of the dark matter potential as well as the initial displacement of the field. While both of these mechanisms in principle connect the observed dark matter abundance to specific regions of parameter space, it is worth bearing in mind that additional new physics beyond the dark matter itself can change the expectations for early cosmology, and thus the predicted abundance as a function of the model parameters [33][34][35][36][37][38][39].…”

Section: Dark Mattermentioning

confidence: 99%

The Future of US Particle Physics: Report of the 2021 Snowmass Community Study – Chapter 5: Cosmic Frontier

Chou¹

2022

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We present the Snowmass 2021 strategy to delve deep, search wide, and aim high for new discoveries at the Cosmic Frontier of particle physics. The Cosmic Frontier is the bedrock of High Energy Physics in the twenty-first century, providing evidence for Beyond the Standard Model physics that motivates much of the Snowmass 2021 program across all frontiers. The scientific scope of the Cosmic Frontier encompasses four of the five science drivers of the field: dark matter, dark energy and cosmic acceleration, neutrinos, and exploring the unknown in search of new particles, new fields, and new principles of Nature. Covering a time frame of 20 years, our plan features a portfolio of small, medium, and large projects which are ready to produce a continuous stream of groundbreaking science results within this decade along with pathfinders for the next generation of projects to come in the following decade. In this report, we articulate the fundamental questions to be addressed for each science driver and identify key measurements required to achieve well-defined scientific thresholds for discovery. We describe the ecosystem of experiments designed to obtain those measurements as well as the associated developments in theory and technology. We plan to delve deep in sensitivity and search wide across many orders of magnitude in mass to discover the particle nature of dark matter. Moreover, we aim high, through billions of light years of cosmic history, to discover the time-evolution of dark energy, make the first experimental observations of the physics of inflation, and search for new physics at the highest energy scales. Search Wide, Aim High, Delve Deep: the Cosmic Frontier Strategy for DiscoveryThe Cosmic Frontier (CF) comprises a broad set of activities aimed at understanding the fundamental physics which governs the evolution of the Universe and its constituents. For Snowmass 2021, the CF is organized into topical groups, each of which produced a report summarizing the open questions and scientific opportunities in its area:• CF1 : particle-like dark matter [1];• CF2 : wave-like dark matter [2];• CF3 : cosmic probes of dark matter [3];• CF4 : dark energy and cosmic acceleration in the modern Universe [4];

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Cosmologically varying kinetic mixing

Gan,

Liu

2023

J. High Energ. Phys.

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The portal connecting the invisible and visible sectors is one of the most natural explanations of the dark world. However, the early-time dark matter production via the portal faces extremely stringent late-time constraints. To solve such tension, we construct the scalar-controlled kinetic mixing varying with the ultralight CP-even scalar’s cosmological evolution. To realize this and eliminate the constant mixing, we couple the ultralight scalar within 10−33eV ≲ m0 ≪ eV with the heavy doubly charged messengers and impose the ℤ2 symmetry under the dark charge conjugation. Via the varying mixing, the keV – MeV dark photon dark matter is produced through the early-time freeze-in when the scalar is misaligned from the origin and free from the late-time exclusions when the scalar does the damped oscillation and dynamically sets the kinetic mixing. We also find that the scalar-photon coupling emerges from the underlying physics, which changes the cosmological history and provides the experimental targets based on the fine-structure constant variation and the equivalence principle violation. To ensure the scalar naturalness, we discretely re-establish the broken shift symmetry by embedding the minimal model into the ℤN-protected model. When N ~ 10, the scalar’s mass quantum correction can be suppressed much below 10−33eV.

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Dark matter freeze-out during SU(2)L confinement

Cited by 3 publications

References 45 publications

Snowmass2021 Cosmic Frontier Dark Matter Direct Detection to the Neutrino Fog

Snowmass2021 Cosmic Frontier Dark Matter Direct Detection to the Neutrino Fog

The Future of US Particle Physics: Report of the 2021 Snowmass Community Study – Chapter 5: Cosmic Frontier

Cosmologically varying kinetic mixing

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