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Majorana Dark Matter and Neutrino Mass in a Singlet-Doublet Extension of the Standard Model

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Proceedings of the XXIV DAE-BRNS High Energy Physics Symposium, Jatni, India

Part of the book series: Springer Proceedings in Physics ((SPPHY,volume 277))

Abstract

A minimal extension of the Standard Model (SM) by a vector-like fermion doublet and three right-handed (RH) singlet neutrinos is proposed in order to explain dark matter and tiny neutrino mass simultaneously. The DM arises as a mixture of the neutral component of the fermion doublet and one of the RH neutrinos, both assumed to be odd under an imposed \(\mathcal {Z}_2\) symmetry. Being Majorana in nature, the DM escapes from Z-mediated direct search constraints to mark a significant difference from singlet-doublet Dirac DM. The other two \(\mathcal {Z}_2\) even heavy RH neutrinos give rise masses and mixing of light neutrinos via Type-I Seesaw mechanism. Relic density and direct search allowed parameter space for the model is investigated through detailed numerical scan.

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References

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Author information

Authors and Affiliations

  1. Department of Physics, Indian Institute of Technology Hyderabad, Kandi, 502285, Telangana, India

    Manoranjan Dutta & Narendra Sahu

  2. Department of Physics, Indian Institute of Technology Guwahati, North Guwahati, 781039, Assam, India

    Subhaditya Bhattacharya

  3. Regional Centre for Accelerator-based Particle Physics, Harish-Chandra Research Institute, HBNI, Chhatnag Road, Jhunsi, 211019, Allahabad, India

    Purusottam Ghosh

Authors
  1. Manoranjan Dutta
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  2. Subhaditya Bhattacharya
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  3. Purusottam Ghosh
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  4. Narendra Sahu
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Corresponding author

Correspondence to Manoranjan Dutta .

Editor information

Editors and Affiliations

  1. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Bedangadas Mohanty

  2. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Sanjay Kumar Swain

  3. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Ranbir Singh

  4. School of Physical Sciences, National Institute of Science Education and Research, Jatni, India

    Varchaswi K. S. Kashyap

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© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Dutta, M., Bhattacharya, S., Ghosh, P., Sahu, N. (2022). Majorana Dark Matter and Neutrino Mass in a Singlet-Doublet Extension of the Standard Model. In: Mohanty, B., Swain, S.K., Singh, R., Kashyap, V.K.S. (eds) Proceedings of the XXIV DAE-BRNS High Energy Physics Symposium, Jatni, India. Springer Proceedings in Physics, vol 277. Springer, Singapore. https://doi.org/10.1007/978-981-19-2354-8_124

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  • DOI: https://doi.org/10.1007/978-981-19-2354-8_124

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-19-2353-1

  • Online ISBN: 978-981-19-2354-8

  • eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)

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