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Title: Dark matter blind spots at one-loop

Abstract

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 tomore » 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.« less

Authors:
 [1];  [2];  [3];  [2]
  1. Univ. of Pittsburgh, PA (United States); Tsinghua Univ., Beijing (China)
  2. Univ. of Pittsburgh, PA (United States)
  3. Indian Association for the Cultivation of Science, Kolkata (India)
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1610283
Grant/Contract Number:  
FG02-95ER40896
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2019; Journal Issue: 3; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Physics; Beyond Standard Model; Supersymmetric; Standard Model

Citation Formats

Han, Tao, Liu, Hongkai, Mukhopadhyay, Satyanarayan, and Wang, Xing. Dark matter blind spots at one-loop. United States: N. p., 2019. Web. doi:10.1007/jhep03(2019)080.
Han, Tao, Liu, Hongkai, Mukhopadhyay, Satyanarayan, & Wang, Xing. Dark matter blind spots at one-loop. United States. https://doi.org/10.1007/jhep03(2019)080
Han, Tao, Liu, Hongkai, Mukhopadhyay, Satyanarayan, and Wang, Xing. Thu . "Dark matter blind spots at one-loop". United States. https://doi.org/10.1007/jhep03(2019)080. https://www.osti.gov/servlets/purl/1610283.
@article{osti_1610283,
title = {Dark matter blind spots at one-loop},
author = {Han, Tao and Liu, Hongkai and Mukhopadhyay, Satyanarayan and Wang, Xing},
abstractNote = {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.},
doi = {10.1007/jhep03(2019)080},
journal = {Journal of High Energy Physics (Online)},
number = 3,
volume = 2019,
place = {United States},
year = {Thu Mar 14 00:00:00 EDT 2019},
month = {Thu Mar 14 00:00:00 EDT 2019}
}

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