Dark matter blind spots at one-loop
- Univ. of Pittsburgh, PA (United States); Tsinghua Univ., Beijing (China)
- Univ. of Pittsburgh, PA (United States)
- Indian Association for the Cultivation of Science, Kolkata (India)
We evaluate the impact of one-loop electroweak corrections to the spinindependent dark matter (DM) scattering cross-section with nucleons (σSI), in models with a so-called blind spot for direct detection, where the leading-order prediction for the relevant DM coupling to the Higgs boson, and therefore σSI, are vanishingly small. Adopting a simple illustrative scenario in which the DM state results from the mixing of electroweak singlet and doublet fermions, we compute the relevant higher order corrections to the scalar effective operator contributions to σSI, stemming from both triangle and box diagrams involving the SM and dark sector fields. It is observed that in a significant region of the singlet-doublet model-space, the one-loop corrections “unblind” the tree-level blind spots and lead to detectable SI scattering rates at future multi-ton scale liquid Xenon experiments, with σSI reaching values up to a few times 10-47 cm2 for a weak scale DM with O(1) Yukawa couplings. Furthermore, we find that there always exists a new SI blind spot at the next-to-leading order, which is perturbatively shifted from the leading order one in the singlet-doublet mass parameters. For comparison, we also present the tree-level spin-dependent scattering cross-sections near the SI blind-spot region, that could lead to a larger signal. Our results can be mapped to the blind-spot scenario for bino-Higgsino DM in the MSSM, with other sfermions, the heavier Higgs boson, and the wino decoupled.
- Research Organization:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-95ER40896
- OSTI ID:
- 1610283
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2019, Issue 3; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Relic density of dark matter in the inert doublet model beyond leading order: The heavy mass case
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journal | November 2019 |
Leading loop effects in pseudoscalar-Higgs portal dark matter
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journal | May 2019 |
Pseudo-Nambu-Goldstone dark matter: Examples of vanishing direct detection cross section
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journal | May 2019 |
Pseudo-Nambu-Goldstone dark matter and two-Higgs-doublet models
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journal | October 2019 |
Pseudo Nambu-Goldstone Dark Matter: Examples of Vanishing Direct Detection Cross Section | text | January 2019 |
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