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The discovery of high-performance electrocatalysts is crucial for advancing sustainable energy technologies. Compositionally complex solid solutions comprising multiple metals offer promising catalytic properties, yet their exploration is…

Materials Science · Physics 2025-02-27 F. Thelen , R. Zehl , R. Zerdoumi , J. L. Bürgel , L. Banko , W. Schuhmann , A. Ludwig

Recent associations of high-energy neutrinos with active galactic nuclei (AGN) have revived the interest in leptohadronic models of radiation from astrophysical sources. The rapid increase in the amount of acquired multi-messenger data will…

High Energy Astrophysical Phenomena · Physics 2024-07-08 S. I. Stathopoulos , M. Petropoulou , G. Vasilopoulos , A. Mastichiadis

Thermochemistry, ray-tracing radiation, and radiation-matter interactions are important processes which are computationally difficult to model in astrophysical simulations, addressed by introducing novel algorithms optimized for…

Instrumentation and Methods for Astrophysics · Physics 2026-02-03 Lile Wang

In July of 2019, the IceCube experiment detected a high-energy neutrino from the direction of the powerful blazar PKS 1502+106. We perform multi-wavelength and multi-messenger modeling of this source, using a fully self-consistent one-zone…

High Energy Astrophysical Phenomena · Physics 2021-05-12 Xavier Rodrigues , Simone Garrappa , Shan Gao , Vaidehi S. Paliya , Anna Franckowiak , Walter Winter

The high-peaked BL Lac object Pks2155-304 shows high variability at multiwavelengths, i.e. from optical up to TeV energies. A giant flare of around 1 hour at X-ray and TeV energies was observed in 2006. In this context, it is essential to…

High Energy Astrophysical Phenomena · Physics 2016-05-25 Julia K. Becker , Athina Meli , Peter L. Biermann

Blazar emission models are usually divided into two big families, leptonic and hadronic, according to the particles which are responsible for the gamma-ray component of their spectral energy distributions. Even though leptonic models have…

High Energy Astrophysical Phenomena · Physics 2017-08-09 M. Cerruti , A. Zech , G. Emery , D. Guarin

The author is developing a numerical code with thousands of emission zones to simulate the time-dependent multi-waveband emission from blazars. The code is based on a model in which turbulent plasma flowing at a relativistic speed down a…

High Energy Astrophysical Phenomena · Physics 2013-04-09 A. P. Marscher

Tau leptons serve as an important tool for studying the production of Higgs and electroweak bosons, both within and beyond the Standard Model of particle physics. Accurate reconstruction and identification of hadronically decaying tau…

High Energy Physics - Experiment · Physics 2024-12-23 Laurits Tani , Nalong-Norman Seeba , Hardi Vanaveski , Joosep Pata , Torben Lange

The limited availability and accuracy of simulated data has motivated the use of foundation models in high energy physics, with the idea to first train a task-agnostic model on large and potentially unlabeled datasets. This enables the…

High Energy Physics - Experiment · Physics 2025-07-09 Laurits Tani , Joosep Pata , Joschka Birk

We propose a novel analysis strategy, that leverages the unique capabilities of the DUNE experiment, to study tau neutrinos. We integrate collider physics ideas, such as jet clustering algorithms in combination with machine learning…

High Energy Physics - Phenomenology · Physics 2020-09-30 Pedro Machado , Holger Schulz , Jessica Turner

Tau leptons play a crucial role in studies of the Higgs boson and searches for Beyond the Standard Model physics at the present LHC and in its high luminosity upgrade. This talk presents the latest advancements in the reconstruction and…

High Energy Physics - Experiment · Physics 2025-12-09 Andrea Cardini

This paper describes ZEUS-MP, a multi-physics, massively parallel, message- passing implementation of the ZEUS code. ZEUS-MP differs significantly from the ZEUS-2D code, the ZEUS-3D code, and an early "version 1" of ZEUS-MP distributed…

Modeling the broadband emission of blazars has become increasingly challenging with the advent of multimessenger observations. Building upon previous successes in applying convolutional neural networks (CNNs) to leptonic emission scenarios,…

High Energy Astrophysical Phenomena · Physics 2025-07-01 N. Sahakyan , D. Bégué , A. Casotto , H. Dereli-Bégué , V. Vardanyan , M. Khachatryan , P. Giommi , A. Pe'er

We present a theoretical analysis of the expected X-ray and gamma-ray polarization signatures resulting from synchrotron self-Compton emission in leptonic models, compared to the polarization signatures from proton synchrotron and cascade…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Haocheng Zhang , Markus Boettcher

A tau lepton identification algorithm, DeepTau, based on convolutional neural network techniques, has been developed in the CMS experiment to discriminate reconstructed hadronic decays of tau leptons ($\tau_\mathrm{h}$) from quark or gluon…

High Energy Physics - Experiment · Physics 2025-12-25 CMS Collaboration

We present a comprehensive temporal and spectral analysis of a few blazars using multi-wavelength observations. Rapid flux variations are quantified via the doubling/halving timescale method, revealing the shortest variability timescales of…

High Energy Astrophysical Phenomena · Physics 2025-06-17 Ajay Sharma , Aishwarya Sarath , Sakshi Chaudhary , Debanjan Bose

We give a pedagogical introduction to the rich phenomenology of hadronic tau decays. These decays provide a unique window into the interplay of electroweak and strong interactions at low energies, as they occur primarily via $W$ exchange…

High Energy Physics - Phenomenology · Physics 2025-05-01 Antonio Rodríguez-Sánchez

There is mounting evidence that blazars are the sources of part of the very-high-energy astrophysical neutrino flux detected by IceCube. In particular, there have been several spatial and temporal coincidences of individual IceCube neutrino…

High Energy Astrophysical Phenomena · Physics 2024-10-30 Joshua Robinson , Markus Boettcher

We present two ways of modeling the spectral energy distribution of blazars in the hadronic context and discuss the predictions of each "hadronic variant" on the spectral shape, the multi-wavelength variability, the cosmic-ray flux, and the…

High Energy Astrophysical Phenomena · Physics 2016-01-25 Maria Petropoulou , Stavros Dimitrakoudis , Paolo Padovani , Elisa Resconi , Paolo Giommi , Apostolos Mastichiadis

The status of implementation of new hadronic currents into the Monte Carlo system for simulation of tau-lepton production and decay in high-energy accelerator experiments is reviewed. Since the tau-lepton conference in 2010 substantial…

High Energy Physics - Phenomenology · Physics 2015-06-04 Z. Was