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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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From NANOGrav to LIGO with metastable cosmic strings

TL;DR: In this paper, the authors interpret the NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings, which can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand unification, and confront these results with predictions from successful inflation, leptogenesis and dark matter from the spontaneous breaking of a gauged B−L symmetry.
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Oscillations in the stochastic gravitational wave background from sharp features and particle production during inflation

TL;DR: In this article, the authors identify a characteristic pattern in the scalar-induced stochastic gravitational wave background from particle production during inflation, and present an explicit realisation of this phenomenon in the framework of multifield inflation, in the form of a strong sharp turn in the inflationary trajectory.
Journal ArticleDOI

Art of lattice and gravity waves from preheating

Zhiqi Huang
- 07 Jun 2011 - 
TL;DR: A new lattice code HLATTICE is presented, which differs from previous public available codes in the following three aspects: a much higher accuracy is achieved with a modified sixth-order symplectic integrator; scalar, vector, and tensor metric perturbations in synchronous gauge and their feedback to the dynamics of scalar fields are all included.
Journal ArticleDOI

The fifth-order post-Newtonian Hamiltonian dynamics of two-body systems from an effective field theory approach: Potential contributions

TL;DR: In this paper, the potential contributions of the motion of binary mass systems in gravity to the fifth post-Newtonian order ab initio using coupling and velocity expansions within an effective field theory approach based on Feynman amplitudes starting with harmonic coordinates and using dimensional regularization were calculated.
Journal ArticleDOI

The Aemulus Project. II. Emulating the Halo Mass Function

TL;DR: In this article, the authors proposed a new approach to solve the problem of energy efficiency in the context of energy-efficient wireless sensor networks, which is based on the Langley PITT PACC Postdoctoral fellowship.
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