Probing superheavy dark matter with gravitational waves

Bian, Ligong; Li, Xuewen; Xie, Ke-Pan

doi:10.1007/jhep11(2021)175

Cited by 34 publications

(16 citation statements)

References 97 publications

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“…The summary of our results is shown in figure 7: while only GWs will potentially test all the parameter space up to m DM ∼ 10 6 TeV, for DM masses of hundreds of TeV telescopes will provide a complementary access to the same models, realising a new kind of multimessenger approach to heavy DM. 19 Other ways to evade this bound are, for example, DM dilution after a matter era [128,[223][224][225][226][227][228][229][230][231][232][233], or having a dark sector being much cooler than SM [234,235], DM becoming heavy only after freezing-out [236], DM annihilating with one spectator field [237,238] or with many of them [239], DM forming an extended object which undergoes a second annihilation stage [240][241][242]. Mechanisms involving phase transitions include the possibility of a short inflationary stage associated with perturbative DM mass generation [147], DM filtered [243][244][245] or squeezed-out [246][247][248] by non-relativistic bubble wall motion, DM produced by elastic bubble-bubble collisions [249] or perturbative plasma interactions with relativistic walls [250].…”

Section: Jhep07(2022)084mentioning

confidence: 99%

Supercool composite Dark Matter beyond 100 TeV

Baldes

Gouttenoire

Sala

et al. 2022

J. High Energ. Phys.

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Dark Matter could be a composite state of a confining sector with an approximate scale symmetry. We consider the case where the associated pseudo-Goldstone boson, the dilaton, mediates its interactions with the Standard Model. When the confining phase transition in the early universe is supercooled, its dynamics allows for Dark Matter masses up to 106 TeV. We derive the precise parameter space compatible with all experimental constraints, finding that this scenario can be tested partly by telescopes and entirely by gravitational waves.

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Section: Jhep07(2022)084mentioning

confidence: 99%

Supercool composite Dark Matter beyond 100 TeV

Baldes

Gouttenoire

Sala

et al. 2022

J. High Energ. Phys.

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“…Finally, we also like to comment on the detection prospect of the model under consideration. The spontaneous breaking of the U (1) B−L symmetry at a high energy scale leads to the formation of Nambu-Goto cosmic strings [69]. Once formed, the collisions and selfinteractions of strings produce non-self-interacting string loops, which further oscillates and radiates its energy in the form of gravitational wave (GW).…”

Section: Case A: Complete Ffi Region When Mmentioning

confidence: 99%

Freeze-in Dark Matter Through Forbidden Channel in $U(1)_{B-L}$

Konar,

Roshan,

Show

2021

Preprint

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We examine a scenario for freeze-in production of dark matter, which occurs due to the large thermal correction to the mass of a decaying mediator particle present in the thermal bath of the early Universe. We show that the decays, which are kinematically forbidden otherwise, can open up at very high temperatures and dominate the dark matter production. We explore such forbidden production of dark matter in the minimal U (1) B−L model, comparing dark matter phenomenology in the context of forbidden frozen-in with the standard picture.

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“…There are many candidates for the dark matter particles, like, for example, axions, neutrinos, WIMPs (Weakly Interacting Massive Particles), gravitinos, neutralinos etc. (for reviews of the candidates for dark matter particle see [40][41][42][43]).…”

Section: Introductionmentioning

confidence: 99%

Gravitational induced particle production in scalar-tensor $f(R,T)$ gravity

Pinto,

Harko,

Lobo

2022

Preprint

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We explore the possibility of gravitationally generated particle production in the scalar-tensor representation of f (R, T ) gravity. Due to the explicit nonminimal curvature-matter coupling in the theory, the divergence of the matter energy-momentum tensor does not vanish. We explore the physical and cosmological implications of this property by using the formalism of irreversible thermodynamics of open systems in the presence of matter creation/annihilation. The particle creation rates, pressure, temperature evolution and the expression of the comoving entropy are obtained in a covariant formulation and discussed in detail. Applied together with the gravitational field equations, the thermodynamics of open systems lead to a generalization of the standard ΛCDM cosmological paradigm, in which the particle creation rates and pressures are effectively considered as components of the cosmological fluid energy-momentum tensor. We also consider specific models, and compare the scalar-tensor f (R, T ) cosmology with the ΛCDM scenario and the observational data for the Hubble function. The properties of the particle creation rates, of the creation pressures, and entropy generation through gravitational matter production are further investigated in both the low and high redshift limits.

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Probing superheavy dark matter with gravitational waves

Cited by 34 publications

References 97 publications

Supercool composite Dark Matter beyond 100 TeV

Supercool composite Dark Matter beyond 100 TeV

Freeze-in Dark Matter Through Forbidden Channel in $U(1)_{B-L}$

Gravitational induced particle production in scalar-tensor $f(R,T)$ gravity

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