Review of Indirect WIMP Search Experiments

Rott, C.

doi:10.1016/j.nuclphysbps.2013.04.040

Cited by 11 publications

(14 citation statements)

References 50 publications

(29 reference statements)

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“…A source distance of 80kpc is chosen to be consistent with the distance for each model within the 1-σ error. Corresponding J-factors are shown in Table II, which show good agreements with the scaling law of J ∝ d −2 for point sources [82,139] 16, upper limits on σv get lower in milder ways than those expected from the scaling of the J-factor. Also, the DM mass dependence of the ratio differs between annihilation channels.…”

Section: Nosupporting

confidence: 57%

“…Then σv N o. 16 can get close to the expected values for those of point sources. The behaviour of the ratio σv N o.…”

Section: A Dependences On Profilessupporting

confidence: 57%

“…The behaviour of the ratio σv N o. 16 / σv N o.14 is a manifestation of these effects since profile No.14 almost corresponds to a point source. Combining those two effects, the ratio between the profiles has the bump structures seen in Figure 6.…”

Section: A Dependences On Profilesmentioning

confidence: 99%

“…One possibility is that DM is a new particle: weakly interacting massive particles (WIMPs) (e.g. [15,16]), strongly interacting massive particles (e.g. [17,18]), axions (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…. Ratios of upper limits on the annihilation crosssection obtained with profile No 16. and No.14 in Table I.…”

mentioning

confidence: 99%

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Dependence of accessible dark matter annihilation cross sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array

2019

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Dwarf spheroidal galaxies are excellent targets in γ-ray searches for dark matter. We consider dark matter searches in dwarf spheroidal galaxies (dSphs) with the Cherenkov Telescope Array (CTA). The aim of this work is to reveal a quantitative and precise dependence of the accessible dark matter annihilation cross-sections on the dark matter density profiles of dSphs and on the distance to them. In most data analyses, researchers have assumed point-like signals from dSphs because it is difficult to resolve the expected emission profiles with current γ-ray observatories. In future however, CTA will be able to resolve the peak emission profiles in dSphs. We take several variations of the dark matter density profile of Draco dSph as examples and analyze the simulated observations of with CTA. We derive the accessible region of the dark matter annihilation crosssection with each dark matter density profile. The accessible region of the annihilation cross-section can differ by a factor of 10 among plausible profiles. We also examine the dependence on the distance to the target dSphs by assuming the same profiles of dSphs at different distances. Closer targets are better due to the higher J-factor, while their spatial extension significantly degrades our reach to the annihilation cross-section compared to the value expected from a simple distance-scaling of the J-factor. Spatial extension of the source affects the probable parameter region in energy-dependent ways. In some γ-ray energy ranges, this behaviour becomes moderately dependent on the properties of the observation facility.

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Section: Nosupporting

confidence: 57%

“…Then σv N o. 16 can get close to the expected values for those of point sources. The behaviour of the ratio σv N o.…”

Section: A Dependences On Profilessupporting

confidence: 57%

Section: A Dependences On Profilesmentioning

confidence: 99%

“…One possibility is that DM is a new particle: weakly interacting massive particles (WIMPs) (e.g. [15,16]), strongly interacting massive particles (e.g. [17,18]), axions (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…. Ratios of upper limits on the annihilation crosssection obtained with profile No 16. and No.14 in Table I.…”

mentioning

confidence: 99%

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Dependence of accessible dark matter annihilation cross sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array

2019

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A novel approach to study atmospheric neutrino oscillation

Hagiwara

Rott

2014

J. High Energ. Phys.

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We develop a general theoretical framework to analytically disentangle the contributions of the neutrino mass hierarchy, the atmospheric mixing angle, and the CP phase, in neutrino oscillations. To illustrate the usefulness of this framework, especially that it can serve as a complementary tool to neutrino oscillogram in the study of atmospheric neutrino oscillations, we take PINGU as an example and compute muon-and electron-like event rates with event cuts on neutrino energy and zenith angle. Under the assumption of exact measurement of neutrino momentum with a perfect e-µ identification and no background, we find that the PINGU experiment has the potential of resolving the neutrino mass hierarchy and the octant degeneracies within 1-year run, while the measurement of the CP phase is significantly more challenging. Our observation merits a serious study of the detector capability of estimating the neutrino momentum for both muon-and electron-like events.

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Tracking the Local Group dynamics by extended gravity

Benisty

Capozziello

2023

Physics of the Dark Universe

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Review of Indirect WIMP Search Experiments

Cited by 11 publications

References 50 publications

Dependence of accessible dark matter annihilation cross sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array

Dependence of accessible dark matter annihilation cross sections on the density profiles of dwarf spheroidal galaxies with the Cherenkov Telescope Array

A novel approach to study atmospheric neutrino oscillation

Tracking the Local Group dynamics by extended gravity

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