Effective field theory and scalar triplet dark matter
Journal of High Energy PhysicsWe discuss an extension of the standard model with a real scalar triplet, T, including non-renormalizable operators (NROs) up to d = 6. If T is odd under a Z 2 symmetry, the neutral component of T is a good candidate for the dark matter (DM) of the ...
Carolina Arbeláez +4 more
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Constraints on the mass and self-coupling of ultra-light scalar field dark matter using observational limits on galactic central mass [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 It is well known that Ultra-Light Dark Matter (ULDM), usually scalar fields of mass m ∼ 10-22 eV, can solve some of the outstanding problems of the Cold Dark Matter (CDM) paradigm. Such a scalar field could have non-negligible self-coupling λ.
S. Chakrabarti +3 more
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Scalar field dark matter and dark energy: a hybrid model for the dark sector [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Diverse cosmological and astrophysical observations strongly hint at the presence of dark matter and dark energy in the Universe. One of the main goals of Cosmology is to explain the nature of these two components.
C. van de Bruck +2 more
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Core-envelope haloes in scalar field dark matter with repulsive self-interaction: fluid dynamics beyond the de Broglie wavelength [PDF]
Monthly notices of the Royal Astronomical Society, 2021 Scalar Field Dark Matter (SFDM) comprised of ultralight bosons has attracted great interest as an alternative to standard, collisionless Cold Dark Matter (CDM) because of its novel structure-formation dynamics, described by the coupled Schrödinger ...
Taha Dawoodbhoy +2 more
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Constraints on Scalar Field Dark Matter from Colocated Michelson Interferometers. [PDF]
Physical Review Letters, 2021 Low-mass (sub-eV) scalar field dark matter may induce apparent oscillations of fundamental constants, resulting in corresponding oscillations of the size and the index of refraction of solids.
L. Aiello +6 more
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Quasinormal modes, Hawking radiation and absorption of the massless scalar field for Bardeen black hole surrounded by perfect fluid dark matter [PDF]
Modern Physics Letters A, 2023 We study the quasinormal modes, Hawking radiation and absorption cross-section of the Bardeen black hole surrounded by perfect fluid dark matter for a massless scalar field. Our results show that the oscillation frequency of quasinormal modes is enhanced
Qi Sun, Qian Li, Yu Zhang, Qi-Quan Li
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Core-halo mass relation in scalar field dark matter models and its consequences for the formation of supermassive black holes [PDF]
Physical Review D, 2020 Scalar-field dark matter (SFDM) halos exhibit a core-envelope structure with soliton-like cores and CDM-like envelopes. Simulations without self-interaction (free-field case) report a core-halo mass relation $M_c\propto M_{h}^{\beta}$, with either $\beta=
Luis E. Padilla +4 more
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Analytical treatment of small scales matter power spectrum in coupled scalar field (CSF) cosmology [PDF]
EPJ Web of Conferences, 2020 In this paper, we reconstruct matter power spectrum of a cosmological model in which coupled scalar field acts as dark energy. The coupled scalar field (CSF) dark energy we propose here is a generalized model of quintessence, k-essence or phantom coupled
Mulki Fargiza A. M., Wulandari Hesti
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, 2021 In recent years, the scalar field dark matter (SFDM), also called ultralight bosonic dark matter, has received considerable attention due to the number of problems it might help to solve.
Jordi Solís-López +4 more
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Radiative interactions between new non-Abelian gauge sector and the standard model
Physics Letters B, 2021 We discuss one loop generation of the term connecting gauge fields from a local hidden SU(2)H and the standard model U(1)Y introducing an SU(2)H doublet fermion with non-zero hypercharge and a scalar field in adjoint representation.
Takaaki Nomura, Hiroshi Okada
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