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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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Journal Article

The Observation of Gravitational Waves from a Binary Black Hole Merger

TL;DR: The first direct detection of gravitational waves and the first observation of a binary black hole merger were reported in this paper, with a false alarm rate estimated to be less than 1 event per 203,000 years, equivalent to a significance greater than 5.1σ.
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Bow-Shock Pulsar Wind Nebulae Searches Aided by the North American Nanohertz Observatory for Gravitational Waves

TL;DR: The North American Nanohertz Observatory for Gravitational Waves (NANOW) is a collaboration of researchers who are actively engaged in using North American radio telescopes to detect and study gravitational waves (GWs) via pulsar timing.

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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Cosmic ray nuclei, antiprotons and gamma rays in the galaxy: a new diffusion model

TL;DR: In this article, a new numerical code was proposed to model the transport of cosmic ray nuclei in the galaxy by means of a new spatial distribution of the diffusion coefficient, and the main secondary/primary ratios (B/C, N/O and sub-Fe/Fe) consistently match the available observations.
Journal ArticleDOI

Neutrino oscillations and Non-Standard Interactions

TL;DR: In this paper, the current status of the neutrino oscillation parameter determination is summarized and the conditions on the non-standard interaction parameters under which the precision measurement of neutrinos oscillation parameters can be distorted.
Journal ArticleDOI

Features of heavy physics in the CMB power spectrum

TL;DR: In this article, the authors compute the primordial power spectrum in general multi-field models and show that certain inflaton trajectories may lead to observationally significant imprints of heavy physics in the power spectrum if the inflaton trajectory turns, that is, traverses a bend, sufficiently fast.
Journal ArticleDOI

General Relativity from Scattering Amplitudes.

TL;DR: The program to apply modern quantum field theory methods to calculate observables in classical general relativity through a truncation to classical terms of the multigraviton, two-body, on-shell scattering amplitudes between massive fields is outlined.
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