Higgs portals to pulsar collapse
Apr 15, 201512 pages
Published in:
- Phys.Rev.D 91 (2015) 11, 115001
- Published: Jun 2, 2015
e-Print:
- 1504.04019 [hep-ph]
View in:
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Abstract: (APS)
Pulsars apparently missing from the Galactic center could have been destroyed by asymmetric fermionic dark matter (mX=1–100 GeV) coupled to a light scalar (mϕ=5–20 MeV), which mixes with the Higgs boson. We point out that this pulsar-collapsing dark sector can resolve the core-cusp problem and will either be excluded or discovered by upcoming direct detection experiments. Another implication is a maximum pulsar age curve that increases with distance from the Galactic center, with a normalization that depends on the couplings and masses of dark sector particles. In addition, we use old pulsars outside the Galactic center to place bounds on asymmetric Higgs portal models.Note:
- 12 pages, 3 figures
- 12.60.Fr
- 95.35.+d
- new physics
- pulsar: neutron star
- neutron star: collapse
- galaxy: dark matter
- fermion: dark matter
- WIMP: dark matter
- dark matter: asymmetry
- dark matter: direct detection
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Figures(3)
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