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Light dark matter candidate in B–L gauged radiative inverse seesaw

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Abstract

We study a radiative inverse seesaw model with local B–L symmetry, in which we extend the neutrino mass structure that is generated through a kind of inverse seesaw framework to the more generic one than our previous work. We focus on the real part of bosonic particle as a dark matter and investigate the features in \(\mathcal{ O}\mbox {(1--80)}~\mbox{GeV}\) mass range, reported by the experiments such as CoGeNT and XENON (2012).

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Notes

  1. Since μ″/μ∼μ″/μ′∼〈Φ〉/〈χ〉∼0.05, it is reasonable to neglect this term. In a supersymmetric model, however, this term automatically vanishes in appropriate assignments. We shall publish it elsewhere.

  2. With the non-diagonal structure of y ν , the LFV constraint can be satisfied under the condition that M η ≃ \(\mathcal{ O}\)(500) GeV for y ν ≤0.1. In this case, however, our DM (η R ) mass cannot be of \(\mathcal{ O}\mbox{(1--10)~GeV}\) because the mass difference between m R and M η is proportional to v.

  3. The Higgs analysis in the typical inverse seesaw model has been done in the Ref. [13, 14], in which the detectability of the recent experiments ATLAS and CMS is discussed.

  4. If one would like to consider the constraint of the anti-proton no excess reported by PAMELA, the existence of s-wave is not favor in the NFW profile [16, 17]. But one can easily escape such a constraint to adopt another profile.

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Acknowledgements

H.O. thanks to Prof. Eung-Jin Chun, Dr. Priyotosh Bandyopadhyay, and Dr. Jong-Chul Park, for fruitful discussion. Y.K. thanks Korea Institute for Advanced Study for the travel support and local hospitality during some parts of this work.

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Authors and Affiliations

  1. Akita Highschool, Tegata-Nakadai 1, Akita, 010-0851, Japan

    Yuji Kajiyama

  2. School of Physics, KIAS, Seoul, 130-722, Korea

    Hiroshi Okada

  3. Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE, UK

    Takashi Toma

Authors
  1. Yuji Kajiyama
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  2. Hiroshi Okada
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  3. Takashi Toma
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Correspondence to Hiroshi Okada.

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Kajiyama, Y., Okada, H. & Toma, T. Light dark matter candidate in B–L gauged radiative inverse seesaw. Eur. Phys. J. C 73, 2381 (2013). https://doi.org/10.1140/epjc/s10052-013-2381-2

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  • DOI: https://doi.org/10.1140/epjc/s10052-013-2381-2

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