Relevant bibliographies by topics / Charged Decaying Dark Matter (CHDM)

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Charged Decaying Dark Matter (CHDM)'

Author: Grafiati
Published: 6 September 2023
Last updated: 31 July 2025

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Journal articles on the topic "Charged Decaying Dark Matter (CHDM)"

1

Fuß, Lea, Mathias Garny, and Alejandro Ibarra. "Minimal decaying dark matter: from cosmological tensions to neutrino signatures." Journal of Cosmology and Astroparticle Physics 2025, no. 01 (2025): 055. https://doi.org/10.1088/1475-7516/2025/01/055.

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Abstract The invisible decay of cold dark matter into a slightly lighter dark sector particle on cosmological time-scales has been proposed as a solution to the S 8 tension. In this work we discuss the possible embedding of this scenario within a particle physics framework, and we investigate its phenomenology. We identify a minimal dark matter decay setup that addresses the S 8 tension, while avoiding the stringent constraints from indirect dark matter searches. In our scenario, the dark sector contains two singlet fermions N 1,2, quasi-degenerate in mass, and carrying lepton number so that t
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Belotsky, K., M. Khlopov, C. Kouvaris, and M. Laletin. "High-energy positrons and gamma radiation from decaying constituents of a two-component dark atom model." International Journal of Modern Physics D 24, no. 13 (2015): 1545004. http://dx.doi.org/10.1142/s0218271815450042.

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We study a two-component dark matter candidate inspired by the minimal walking technicolor (WTC) model. Dark matter consists of a dominant strongly interactive massive particle (SIMP)-like dark atom component made of bound states between primordial helium nuclei and a doubly charged technilepton and a small WIMP-like component made of another dark atom bound state between a doubly charged technibaryon and a technilepton. This scenario is consistent with direct search experimental findings because the dominant SIMP component interacts too strongly to reach the depths of current detectors with s
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Belotsky, Konstantin, and Maxim Solovyov. "On the Possible Asymmetry in Gamma Rays from Andromeda Due to Inverse Compton Scattering of Star Light on Electrons from Dark Matter Annihilation." Galaxies 11, no. 6 (2023): 109. http://dx.doi.org/10.3390/galaxies11060109.

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Dark matter is a popular candidate to a new source of primary-charged particles, especially positrons in cosmic rays, which are proposed to account for observable anomalies. While this hypothesis of decaying or annihilating DM is mostly applied for our Galaxy, it could possibly lead to some interesting phenomena when applied for the other ones. In this work, we look into the hypothetical asymmetry in gamma radiation from the upper and lower hemisphere of the dark matter halo of the Andromeda galaxy due to inverse Compton scattering of starlight on the DM-produced electrons and positrons. While
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Jedamzik, Karsten. "The cosmic lithium problem and physics beyond the Standard Model." Proceedings of the International Astronomical Union 5, S268 (2009): 27–31. http://dx.doi.org/10.1017/s1743921310003820.

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AbstractIn this proceeding I briefly discuss the possibility of relic decaying or annihilating particles to explain the cosmological 7Li anomaly and/or to be the source of significant amounts of pre-galactic 6Li. The effect of relic massive charged particles through catalysis of nuclear reactions is also discussed. The possibility of a connection of the 7Li problem to the cosmic dark matter and physics beyond the standard model of particle physics, such as supersymmetry, is noted.
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5

Barak, Ramin, Konstantin Belotsky, and Ekaterina Shlepkina. "Proposition of FSR Photon Suppression Employing a Two-Positron Decay Dark Matter Model to Explain Positron Anomaly in Cosmic Rays." Universe 9, no. 8 (2023): 370. http://dx.doi.org/10.3390/universe9080370.

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The origin of an anomalous excess of high-energy (about 100 GeV and higher) positrons in cosmic rays is one of the rare problems in this field, which is proposed to be solved with dark matter (DM). Attempts to solve this problem are faced with the issue of having to satisfy the data on cosmic positrons and cosmic gamma radiation, which inevitably accompanies positron production, such as FSR (final state radiation), simultaneously. We have been trying to come up with a solution by means of two approaches: making assumptions (*) about the spatial distribution of the dark matter and (**) about th
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6

Dey, Shyamashish, Purusottam Ghosh, and Santosh Kumar Rai. "Confronting dark fermion with a doubly charged Higgs in the left–right symmetric model." European Physical Journal C 82, no. 10 (2022). http://dx.doi.org/10.1140/epjc/s10052-022-10778-z.

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AbstractWe consider a fermionic dark matter (DM) in the left–right symmetric framework by introducing a pair of vector-like (VL) doublets in the particle spectrum. The stability of the DM is ensured through an unbroken $$\mathcal {Z}_2$$ Z 2 symmetry. We explore the parameter space of the model compatible with the observed relic density and direct and indirect detection cross sections. The presence of charged dark fermions opens up an interesting possibility for the doubly charged Higgs signal at LHC and ILC. The signal for the doubly charged scalar decaying into the dark sector is analyzed in
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7

Cheek, Andrew, Yu-Cheng Qiu, and Liang Tan. "Gemini dark matter." Physical Review D 110, no. 7 (2024). http://dx.doi.org/10.1103/physrevd.110.075021.

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The S8/σ8 tension in the large-scale structure can be explained by decaying dark matter with an almost degenerate spectrum and small enough decay width. Here we propose the Gemini dark matter model, which contains a heavy mother particle χ3 and two twins χ1/2, which are almost degenerate in mass and are produced at the same time. The dark sector is charged under the same Froggatt-Nielsen symmetry that can explain the hierarchy of the Standard Model Yukawa couplings. The slightly heavier χ2 decays into χ1 and the axionic component of the flavon, which washes out the small-scale structure and re
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8

Arbeláez, Carolina, A. E. Cárcamo Hernández, Claudio Dib, Patricio Escalona Contreras, Vishnudath K. N., and Alfonso Zerwekh. "A common framework for fermion mass hierarchy, leptogenesis and dark matter." Journal of High Energy Physics 2024, no. 8 (2024). http://dx.doi.org/10.1007/jhep08(2024)235.

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Abstract In this work, we explore an extension of the Standard Model designed to elucidate the fermion mass hierarchy, account for the dark matter relic abundance, and explain the observed matter-antimatter asymmetry in the universe. Beyond the Standard Model particle content, our model introduces additional scalars and fermions. Notably, the light active neutrinos and the first two generations of charged fermions acquire masses at the one-loop level. The model accommodates successful low-scale leptogenesis, permitting the mass of the decaying heavy right-handed neutrino to be as low as 10 TeV
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9

Kalsi, Amandeep Kaur, Teruki Kamon, Seulgi Kim, et al. "Probing bottom-associated production of a TeV scale scalar decaying to a top quark and dark matter at the LHC." Journal of High Energy Physics 2024, no. 9 (2024). http://dx.doi.org/10.1007/jhep09(2024)203.

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Abstract A minimal non-thermal dark matter model that can explain both the existence of dark matter and the baryon asymmetry in the universe is studied. It requires two color-triplet, iso-singlet scalars with $$ \mathcal{O}\left(\textrm{TeV}\right) $$ O TeV masses and a singlet Majorana fermion with a mass of $$ \mathcal{O}\left(\textrm{GeV}\right) $$ O GeV . The fermion becomes stable and can play the role of the dark matter candidate. We consider the fermion to interact with a top quark via the exchange of QCD-charged scalar fields coupled dominantly to third generation fermions. The signatu
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10

Smith, Jason M., Paul A. Dalgarno, Richard J. Warburton, Brian D. Gerardot, and Pierre M. Petroff. "Dark exciton signatures in time-resolved photoluminescence of single quantum dots." MRS Proceedings 789 (2003). http://dx.doi.org/10.1557/proc-789-n9.5.

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ABSTRACTTime-resolved photoluminescence of single charge tuneable quantum dots allows us to probe the differences in recombination dynamics between neutral and negatively charged excitons. We find that the luminescence decay from a neutral exciton contains a second lifetime component of several nanoseconds that is not present in the luminescence from singly or doubly charged excitons. We attribute the slowly decaying component to excitation cycles in which the initial exciton formed in the dot is dark, with angular momentum M = 2, and which subsequently scatters into the bright state with M =
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Dissertations / Theses on the topic "Charged Decaying Dark Matter (CHDM)"

1

Sarkar, Abir. "Probing the Nature of Dark Matter in the Universe." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4223.

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The dark matter is the most dominating matter candidate and a key driving force for the structure formation in the universe. Despite decade-long searches, the precise nature and particle properties of dark matter are still unknown. The standard cold dark matter candidate, the Weakly Interacting Massive Particle(WIMP) can successfully describe the large-scale features of the universe. However, when it comes to the scales comparable to a galaxy or a group of galaxies, it fails to explain the observations. The nature of the small-scale anomalies suggests a lower amount of dark matter at the
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