Resonant bar detector constraints on macro dark matter

Jacobs, David M.; Weltman, Amanda; Starkman, Glenn D.

doi:10.1103/physrevd.91.115023

Cited by 19 publications

(22 citation statements)

References 37 publications

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“…Recently, one of us, with colleagues, presented a comprehensive assessment of limits on such macros as a function of their mass and cross-section [5], identifying specific windows in that parameter space that were as yet unprobed. We later refined those in [6]. An interesting window identified there was for macros with masses of greater than about 55g, and densities that included nuclear density.…”

Section: Introductionmentioning

confidence: 99%

Reconsidering seismological constraints on the available parameter space of macroscopic dark matter

et al. 2017

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Using lunar seismological data, constraints have been proposed on the available parameter space of macroscopic dark matter (macros). We show that actual limits are considerably weaker by considering in greater detail the mechanism through which macro impacts generate detectable seismic waves, which have wavelengths considerably longer than the diameter of the macro. We show that the portion of the macro parameter space that can be ruled out by current seismological evidence is considerably smaller than previously reported, and specifically that candidates with greater than or equal to nuclear density are not excluded by lunar seismology.

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Section: Introductionmentioning

confidence: 99%

Reconsidering seismological constraints on the available parameter space of macroscopic dark matter

et al. 2017

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“…However there is no experimental evidence supporting this idea. Recent reviews are in Ref [9,10] and [11].…”

Section: Introductionmentioning

confidence: 99%

“…The energy loss predicted for super-heavy DM particles varies in different models, but it is likely that for masses of the order of grams or more such particles could be confused with meteors, since the velocity, 270 km/s, is in the high-end tail of the meteor velocity distribution [14]. Many names have been proposed for those objects: Quark nuggets, CUDOs [15],MACROs [16,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…those signal, among those recorded by the detectors as "outliers", that are compatible with an excitation produced by one of the exotic particles described above. Then, starting from the energy distributions of the candidates events we will present upper limits both specialized for nuclearites and for generic MACRO particles, vs. both mass and cross section, as suggested in [9] and [16].…”

Section: Introductionmentioning

confidence: 99%

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Dark matter searches using gravitational wave bar detectors: Quark nuggets and newtorites

Bassan

Coccia

D’Antonio

et al. 2016

Astroparticle Physics

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Many experiments have searched for supersymmetric WIMP dark matter, with null results. This may suggest to look for more exotic possibilities, for example compact ultra-dense quark nuggets, widely discussed in literature with several different names. Nuclearites are an example of candidate compact objects with atomic size cross section. After a short discussion on nuclearites, the result of a nuclearite search with the gravitational wave bar detectors Nautilus and Explorer is reported. The geometrical acceptance of the bar detectors is 19.5 m(2) sr, that is smaller than that of other detectors used for similar searches. However, the detection mechanism is completely different and is more straightforward than in other detectors. The experimental limits we obtain are of interest because, for nuclearites of mass less than 10(-5) g, we find a flux smaller than that one predicted considering nuclearites as dark matter candidates. Particles with gravitational only interactions (newtorites) are another example. In this case the sensitivity is quite poor and a short discussion is reported on possible improvements. (C) 2016 Elsevier B.V. All rights reserved

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“…This is much higher than ordinary "atomic density" (ρ atomic = 1 g cm −3 ), and much lower density than black holes. The unconstrained macro parameter space includes a a wide range of M X for macros of nuclear density (see [9] and [10]). For M X ≤ 55 g, careful examination of specimens of old mica for tracks made by passing dark matter [11,12] have ruled out such objects as the primary dark matter candidate (see Figure 1).…”

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confidence: 99%

Counter-top search for macroscopic dark matter

2019

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A number of dark matter candidates have been discussed that are macroscopic, of approximately nuclear density, and scatter ordinary matter essentially elastically with approximately their geometric cross-section. A wide range of mass and geometric cross-section is still unprobed for these "macros." Macros passing through rock would melt the material in cylinders surrounding their long nearly straight trajectories. Once cooled, the resolidified rock would be easily distinguishable from its surroundings. We discuss how, by visually examining ordinary slabs of rock such as are widely available commercially for kitchen countertops, one could probe an interesting segment of the open macro parameter space.There is considerable, and widely known, evidence for the existence of dark matter [1] or for the need to modify General Relativity (see [2] for a pedagogical review of modified gravity and [3] for a more recent review on the subject). Macroscopic dark matter (macros) represents a wide class of alternatives to particle dark matter -large objects, probably composites of fundamental particles, that are "dark" because their large mass implies a low number density and a small geometric cross-section per unit mass, even though the cross-section of each object is large. There remains a large range of macro mass M X and geometric cross-section σ X that is still unprobed by experiments or observations.A most intriguing possibility is that macros are made of Standard Model quarks or baryons bound by Standard Model forces. This suggestion was originally made by Witten [4], in the context of a nuclear bag model and a then-possible first-order QCD phase transition. A more realistic version was advanced by Lynn, Nelson and Tetradis [5] and Lynn again [6], who argued in the context of SU (3) chiral perturbation theory that "a bound state of baryons with a well-defined surface may conceivably form in the presence of kaon condensation." Nelson [7] studied the possible formation of such "nuggets of strange baryon matter" in an early-universe transition from a kaon-condensate phase of QCD to the ordinary phase. Others have suggested non-Standard Model versions of such nuclear objects and their formation, for example incorporating the axion [8].Such objects would presumably have densities that are comparable to nuclear density (which we take to be ρ nuclear = 3.6 × 10 14 g cm −3 ). This is much higher than ordinary "atomic density" (ρ atomic = 1 g cm −3 ), and much lower density than black holes. The unconstrained macro parameter space includes a a wide range of M X for macros of nuclear density (see [9] and [10]). For M X ≤ 55 g, careful examination of specimens of old mica for tracks made by passing dark matter [11,12] have ruled out such objects as the primary dark matter candidate (see Figure 1). For M X ≥ 10 24 g , a variety of microlensing searches have similarly constrained macros [13][14][15][16]. For M X > ∼ 10 15 g, macros incident on white dwarfs would trigger thermonuclear runaways [17], as previously shown for primordial bl...

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Resonant bar detector constraints on macro dark matter

Cited by 19 publications

References 37 publications

Reconsidering seismological constraints on the available parameter space of macroscopic dark matter

Reconsidering seismological constraints on the available parameter space of macroscopic dark matter

Dark matter searches using gravitational wave bar detectors: Quark nuggets and newtorites

Counter-top search for macroscopic dark matter

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