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EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade

R. Alves Batista, +131 more
TLDR
The European Consortium for Astroparticle Theory (EuCAPT) white paper as mentioned in this paper explores upcoming theoretical opportunities and challenges for our field of research with particular emphasis on the possible synergies among different subfields, and the prospects for solving the most fundamental open questions with multi-messenger observations.
Abstract
Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the direct detection of gravitational waves with LIGO and Virgo, and many others. This white paper is the result of a collaborative effort that involved hundreds of theoretical astroparticle physicists and cosmologists, under the coordination of the European Consortium for Astroparticle Theory (EuCAPT). Addressed to the whole astroparticle physics community, it explores upcoming theoretical opportunities and challenges for our field of research, with particular emphasis on the possible synergies among different subfields, and the prospects for solving the most fundamental open questions with multi-messenger observations.

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Citations
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The Observation of Gravitational Waves from a Binary Black Hole Merger

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Bow-Shock Pulsar Wind Nebulae Searches Aided by the North American Nanohertz Observatory for Gravitational Waves

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Oscillons after Inflation

TL;DR: In this article, it was shown that in a class of well-motivated single-field models, inflation is followed by self resonance, leading to copious oscillon generation and a lengthy period of oscillon domination.

A Reverse Shock in GRB 130427A

TL;DR: In this paper, the authors present extensive radio and millimeter observations of the unusually bright GRB-130427A at z = 0.340, spanning 0.67-12 days after the burst.
Posted Content

A response to O. Arandjelovic's critique of "The reproducibility of research and the misinterpretation of p-values"

TL;DR: The main criticism of my piece in this article seems to be that my calculations rely on testing a point null hypothesis, i.e. the hypothesis that the true effect size is zero.
References
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On Resumming Inflationary Perturbations beyond One-loop

TL;DR: In this paper, the authors explore the behavior of these infrared effects in the large N limit of an O(N)-invariant scalar field theory with quartic self-interactions.
Journal ArticleDOI

Galactic winds driven by isotropic and anisotropic cosmic ray diffusion in disk galaxies

TL;DR: In this paper, high-resolution simulations of isolated disk galaxies in a 1011 M ⊙ halo with the moving-mesh code Arepo were discussed, and it was shown that isotropic diffusion strongly suppresses the amplification of the magnetic field in the disk compared to no diffusion models.
Journal ArticleDOI

Dark Matter and neutrino masses from global U (1) B - L symmetry breaking

TL;DR: In this article, the authors considered neutrino mass generation via the Zee-Babu two-loop mechanism, augmented by a scalar singlet whose VEV breaks the global U ( 1 ) B − L symmetry.
Journal ArticleDOI

Primordial Black Holes from Inflation and non-Gaussianity

TL;DR: In this paper, the exact mass fraction of primordial black holes at formation in the presence of non-Gaussianity was derived for single-field inflation and the other on spectator fields.
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