Search Results - "Cosme, Catarina"

Phenomenology of self-interacting dark matter in a matter-dominated universe by Bernal, Nicolás, Cosme, Catarina, Tenkanen, Tommi

“…We study production of self-interacting dark matter (DM) during an early matter-dominated phase. As a benchmark scenario, we consider a model where the DM…”
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Neutrino portal to FIMP dark matter with an early matter era by Cosme, Catarina, Dutra, Maíra, Ma, Teng, Wu, Yongcheng, Yang, Litao

“…A bstract We study the freeze-in production of Feebly Interacting Massive Particle (FIMP) dark matter candidates through a neutrino portal. We consider a…”
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Scalar singlet dark matter in non-standard cosmologies by Bernal, Nicolás, Cosme, Catarina, Tenkanen, Tommi, Vaskonen, Ville

“…We study production of dark matter (DM) in models with a non-standard expansion history. We consider both freeze-out and freeze-in mechanisms for producing the…”
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Testing freeze-in with axial and vector Z′ bosons by Cosme, Catarina, Dutra, Maíra, Godfrey, Stephen, Gray, Taylor

“…A bstract The freeze-in production of Feebly Interacting Massive Particle (FIMP) dark matter in the early universe is an appealing alternative to the…”
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Scalar field dark matter with spontaneous symmetry breaking and the 3.5 keV line by Cosme, Catarina, Rosa, João G., Bertolami, O.

“…We show that the present dark matter abundance can be accounted for by an oscillating scalar field that acquires both mass and a non-zero expectation value…”
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Scale-invariant scalar field dark matter through the Higgs portal by Cosme, Catarina, Rosa, João G., Bertolami, O.

“…A bstract We discuss the dynamics and phenomenology of an oscillating scalar field coupled to the Higgs boson that accounts for the dark matter in the…”
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Scalar field dark matter and the Higgs field by Bertolami, O., Cosme, Catarina, Rosa, João G.

“…We discuss the possibility that dark matter corresponds to an oscillating scalar field coupled to the Higgs boson. We argue that the initial field amplitude…”
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Conformal symmetry of the critical 3D Ising model inside a sphere by Cosme, Catarina, Lopes, J. M. Viana Parente, Penedones, João

“…A bstract We perform Monte-Carlo simulations of the three-dimensional Ising model at the critical temperature and zero magnetic field. We simulate the system…”
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Scale-invariant scalar field dark matter through the Higgs portal by Cosme, Catarina

“…We introduce an oscillating scalar field coupled to the Higgs that can account for all dark matter in the Universe. Due to an underlying scale invariance of…”
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Dynamics and Phenomenology of Scalar Field Dark Matter Through the Higgs Portal by Cosme, Catarina Martins

“…In this thesis, we discuss the dynamics and phenomenology of an oscillating scalar field coupled to the Higgs boson and which may account for the dark matter…”
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Spectator dark matter in non-standard cosmologies by Cosme, Catarina, Tenkanen, Tommi

“…Phys. Rev. D 102, 123534 (2020) It has been shown that the observed dark matter (DM) abundance can be produced by amplification of quantum fluctuations of an…”
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Temperature evolution in the Early Universe and freeze-in at stronger coupling by Cosme, Catarina, Costa, Francesco, Lebedev, Oleg

“…Dark matter freeze-in at stronger coupling is operative when the Standard Model (SM) bath temperature never exceeds the dark matter mass. An attractive feature…”
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Freeze-in at stronger coupling by Cosme, Catarina, Costa, Francesco, Lebedev, Oleg

“…Predictivity of many non-thermal dark matter (DM) models is marred by the gravitational production background. This problem is ameliorated in models with lower…”
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Baryogenesis and Dark Matter in Multiple Hidden Sectors by Easa, Hassan, Gregoire, Thomas, Stolarski, Daniel, Cosme, Catarina

“…Phys. Rev. D 109, 075003 (2024) We explore a mechanism for producing the baryon asymmetry and dark matter in models with multiple hidden sectors that are…”
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Gravitational wave production from preheating with trilinear interactions by Cosme, Catarina, Figueroa, Daniel G, Loayza, Nicolas

“…We investigate the production of gravitational waves (GWs) during preheating with monomial/polynomial inflationary potentials, considering a trilinear coupling…”
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Monte Carlo Methods in Critical Systems by Cosme, Catarina Martins

“…Critical phenomena is ubiquitous in physics and its applicability ranges from statistical to particle physics. In this context, the critical Ising model is a…”
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Can dark matter drive electroweak symmetry breaking? by Cosme, Catarina, Rosa, João G, Bertolami, Orfeu

“…Phys. Rev. D 102, 063507 (2020) We consider the possibility of an oscillating scalar field accounting for dark matter and dynamically controlling the…”
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Testing freeze-in with axial and vector $Z'$ bosons by Cosme, Catarina, Dutra, Maíra, Godfrey, Stephen, Gray, Taylor R

“…Cosme, C., Dutra, M., Godfrey, S. et al. Testing freeze-in with axial and vector Z' bosons. J. High Energ. Phys. 2021, 56 (2021)…”
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Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe by Bernal, Nicolás, Cosme, Catarina, Tenkanen, Tommi

“…We study production of self-interacting dark matter (DM) during an early matter-dominated phase. As a benchmark scenario, we consider a model where the DM…”
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Scale-invariant scalar field dark matter through the Higgs portal by Cosme, Catarina, Rosa, João G, Bertolami, O

“…We discuss the dynamics and phenomenology of an oscillating scalar field coupled to the Higgs boson that accounts for the dark matter in the Universe. The…”
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